Sock-puppeting, the having of more than one account, is not acceptable on this wiki. Accounts used for sock-puppeting may be blocked indefinitely, because a user has no logical reason to own more than one account. The original account's block length can be increased for a sock-puppeting infraction, and in very serious cases, an indefinite block can be given to the original account.
For new (and possibly junk) accounts, those accounts can be given an infinite block if it is obvious that the account was created simply to wreak damage on the Wiki articles (i.e. blatant vandalism).