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 puppet}} template.
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 persona}} template). 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 Cat:Alt personas 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 {{Doppelganger}} template. See Cat:Doppelganger accounts for a list of doppelgangers.
Bots[]
A Bot is an automated user controlled by another user to perform mundane tasks on The Harry Potter Compendium, 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 Compendium. 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 bot}} template.
All voting, etc. rules from the alternate accounts above also apply to bots.
