User blog comment:BusyCityGuy/ENOUGH with the DUPES/@comment-1693968-20121023221657/@comment-4052371-20121023223650

But that won't stop them from making more dupes. After all, if they did it before, they can do it again to evade the ban. It'll probably be better to just find one of their dupes and block them with the option to prevent them from making new accounts on this wiki.

Besides, making dupes doesn't exactly harm the wiki much unless they are used for spam or vandalism (in which case we could well consider checking IPs).