User blog comment:Opei/Suggestion: Request page for global checkuser./@comment-24852106-20140512233334

If you're interested in getting a checkuser for your wiki, you can send a message over to Special:Contact/general to find out more.

Personally I don't think checkusers should be on every wiki. If there's someone that's suspected of sockpuppeting, administrators can send a message over to staff and find out.