The Harry Potter Compendium:Multiple accounts

All the accounts a user controls will be treated as the same person. In short, registering another username does not allow someone to create a new identity for him/herself: it won't allow a user to circumvent a block or vote more than once.

Sock puppets
An undisclosed alternate account used for disruptive or deceptive purposes is known as a sock puppet. If any of a user's accounts are to be blocked, then all accounts associated with that user will also be blocked. Please mark all known sock puppets with the Sock puppettemplate.

Alternate personas
There are legitimate reasons to use more than one account, however, like a user wanting to have a special username for a role playing "persona", or as part of a WikiProject. A sock puppet must be openly disclosed as an alternate account belonging to a user's main account (please use the Alt personatemplate). Remember: a user may still cast only one vote in any given poll, and, participation in the House Points Game is limited to a single House. See for a list.

It is suggested that an alternate persona's talk page be redirected to the main user account's talk page (so all communication with a unique user is in a single place).

Certain established users may also create a doppelganger account, which is to prevent impersonation by vandals. Please mark these accounts with the Doppelgangertemplate. See for a list of doppelgangers.

Bots
A Bot is an automated user controlled by another user to perform mundane tasks on the Harry-Potter-Lexicon, such as moving categories to a new name, or changing all references to the Sorcerer's Stone to Philosopher's Stone, or other maintenance tasks across the wiki. Bots MUST be approved by a bureaucrat or administrator before being used on the Harry-Potter-Lexicon. A bot may only receive a bot flag once it is proved that it will not run amok. All bots should be marked as such with the user bottemplate.

All voting, etc. rules from the alternate accounts above also apply to bots.