Sock Puppetry, or the assumption of multiple online personalities, is a growing phenomenon in anonymous online communities such as public blogs, commentable news and information sites, and "wikis." The more popular and extensive Wikis (such as Wikipedia, Uncyclopedia, and Memory Alpha) present an unusually fertile ground for various forms of sock puppetry, since the community interactions within a wiki site are vastly more complex than in other anonymous online communities. The "veil of smoke and mirrors" that often best describes the inner sociopolitical workings of such a site actually encourage sock puppetry, in some cases quite strongly, since it is often the only way for a user to achieve a desired goal or objective.
Types of Sock Puppets You Could Be
According to Dr. Sigmundheimer F. Rhoid, author of Conflicting Emoticons: Learning to Love Your Inner Sock Puppet, sock puppetry can take many forms. "What you have to remember, though, is that each of these personalities is controlled by a real, unique person, with real, unique needs and feelings. Usually those needs and feelings are pretty sick-making, though."
Despite this note of caution, Rhoid suggests that sock puppets can be classified into a few well-defined types. "There are a few well-defined types," he notes. "But this is all going to be on Wikipedia, right? Here, let me give you a bullet list."
The most common type of sock puppet, this account usually appears after the original user account has been banned, humilated in a "flame war," or both. The user decides he or she is no longer welcome within the wiki community, and essentially replaces the original identity with a new, "nicer" one. Unfortunately, this is also the easiest type of sock puppet to spot, because such individuals are usually less careful about hiding and/or reversing the characteristics of the original identity, which can be as obvious as consistent spelling errors or formatting preferences.
The Hasty Vandal
Your Handy Guide to the
Seeing Through the
When created by experienced wiki users, this type of sock puppet is usually easy to spot as well, especially on wikis that require a certain number of edits credited to the user before the user is allowed to create new pages or edit those of other users. Since the cheapest and fastest way of building up an edit count is to vote on "To Be Featured" pages, this type of sock puppet will waste no time to vote for or against virtually every item listed on those pages, often within the first few minutes of registration. He might also post a series of "one-liners," which he will proceed to edit multiple times, each time changing or adding just one word or making a minor "formatting correction." As soon as the number of edits reaches the minimum, the sock puppet will attack its "target page," and if necessary, enter into a "revert war" with the page's author. Once banned, this type of sock puppet will usually vanish as quickly as it appeared.
The Incontinental is created when the original user views himself as so superior to others in sophistication, that he decides to err on the side of elitism by creating a "worldly" sock puppet - one that would wear a turban, a beret, or a dashiki. In other words, the user believes that by taking on a different nationality and ethnicity to the original identity, the support for their otherwise-ludicrous argument position will seem broader and more universal, and therefore more rational and acceptable. After all, if a student at the University of New Delhi "knows" the same thing that a pyschotic Ph.D. candidate at Cornell insists is true, doesn't it seem reasonable that the Hindi support the Bulgarian?
What all Incontinental Sock Puppets have in common is that they are universally tied to one of two types of ISP’s: either European providers that offer “free” accounts, or academic servers, usually at lesser-known institutions. This is because their creators (generally speaking) cannot imagine that their sock puppet would have anything less than a Master's degree. Incontinental Sock Puppets always evolve by first contributing to articles that are unique to their fallacious country of origin before jumping into the midst of the fight at full force to defend their colonialistic creator.
It should also be noted that many of the users controlling this type of sock puppet are actual college professors or PhD. candidates. Anyone familiar with a typical faculty mailing list is well aware that comparing a typical "flame war" on a public wiki with even a mildly-divisive conversation between disagreeing academics is like comparing the striking of a match with the Great San Francisco Earthquake and Fire of 1906.
The Held-Back VoterBot
Often nearly impossible to spot, this type of sock puppet will appear once every week or two, usually posting one article and/or a few minor edits at each appearance. A particularly clever and devious user will create and develop several of these accounts over a period of weeks or months, waiting for a "To-Be-Featured" or "To-Be-Deleted" nomination - the success of which is (for whatever reason) important enough to the controlling user that he will use all of the sock puppet accounts to vote for or against the nomination. Sometimes the user will "slip up" and edit one of the sock puppets' articles with a different sock puppet without realizing it, but even if this occurs, usually no obvious proof of sock puppetry is apparent, other than the usual suspicious consistencies in writing style or formatting preference. This type of sock puppet is most likely to become a Wiki Mule for its master's sins.
The Weak Straw Man
This is usually a temporary, quickly-discarded account that exists solely to present a weak, easily-defeated view or argument point contrary to that of the original user account, so that the original account can win an argument that either does not exist or that no one else cares about. While this is one of the more incomprehensible motivations for sock-puppet creation, it is also (oddly enough) one of the most common.
The Tough (But Fair) Straw Man
This account is created when the original user account desires to appear more reasonable and compromising, usually to avoid a ban or deflect attacks from other users. In effect, the original user uses the sock puppet as a means of backtracking on a previous argument position without completely losing face. This is also easy to spot, however, given that it always involves a previously-unknown (and often just-registered) user appearing in the midst of an argument just to propose a compromise that favors the user whose position is the least tenable.
The Insane Fuckwit
Perhaps the most devious and evil of all sock puppet types, this is usually operated by an administrator (or Wikipedophile) who wishes to "mix it up" among the non-admin "hoi polloi," either  purely for the amusement value,  to promote a personal agenda that would otherwise cause the admin to lose his or her hard-won status, or  to punish one or more users for some perceived slight or misbehavior. This account will usually present itself as astoundingly stupid, annoying, stubborn, and bigoted. It will refuse to heed any form of rational argument, often deliberately misinterpreting contrary opinions as if they were favorable ones. It will produce incredibly stupid and low-quality wiki articles and publicly insist they are the "greatest ever," and instantly revert any substantive changes made to them, often for completely nonsensical reasons. In cases where the Insane Fuckwit Sock Puppet is created to punish a specific user (or group of users), this tactic is normally a last resort by the administrator, because of the amount of time and effort required to establish the sock puppet's status and make it sufficiently annoying to drive away an unwanted user who might be too intelligent or clever to be thwarted by a simple ban.
The Cute Little Sweetheart
Almost impossible to detect under normal circumstances, this type - also known as a Wiki Mule - is usually created solely to post content that the original user might be embarrassed to submit under his original user identity. These sock puppets are usually harmless, and in some cases make positive contributions to the wiki. However, in some cases their popularity might quickly become greater than that of the original user, at which point the user either decides to inhabit the sock puppet full-time (often leading to wikiphrenia), or becomes jealous of the sock puppet and gradually abandons it. Not coincidentally, this type of sock puppet is also the most likely to present itself as having a different gender than the original user. Since most wiki contributors are male geeks with no appreciable social life, the introduction of an identifiably-female user can draw enormous amounts of attention. Since attention is precisely what the original user usually craves most, he might seriously consider gender-reassignment surgery simply to maintain the "high," or actualize it into his meatspace reality.