User blog comment:EmpyrealInvective/News about PotM/@comment-24466828-20150522155044/@comment-25428589-20150522162154

These were two people. DarkMaster hasn't created any other accounts that we know of, is the guy who did that.

We can tell through a number of behavioural patterns, which make sockpuppets pretty obvious. If we believe an account is a sock, we'll contact Wikia staff and ask them to perform a CheckUser, in which they look through the IP addresses the accounts have used. If the IPs are equal, we know the accounts are run by the same person/