Bully Wiki's username policy is a policy regarding permissible usernames.
What is disallowed
Usernames may not be misleading, offensive, promotional, disruptive, or contain the word 'wiki'.
Misleading usernames may take the form of impersonating a real life person, claiming affiliation with an organization, or claiming a position of authority on this or any other wiki.
Usernames containing profanity, either obscured or blatant, are disallowed, as are usernames intended to "attack".
Usernames intended to advertise something.
Any username not covered by the above criteria but still disruptive.
"Wiki" in usernames
Usernames may not contain any reference to wikis in them. While it might seem to be harmless, an observation of both Wikia and Wikipedia demonstrates that editors with "wiki" in their usernames are literally invariably disruptive, and so such usernames are forbidden as a preventative measure.
As a general rule of thumb, editors blocked for usernames should have the policy politely explained to them and have it requested that they register a different name. They should be blocked with talk page access and account creation enabled.
In the case of usernames used deliberately to attack, disrupt or troll, the blocking sysop may use his or her judgment in whether to recommend reregistering with a different name or simply blocking indefinitely.