I see that it is possible to edit other peoples profile, that means a random troll might take advantage of that and commit serious douchebagery and then proceded to get struck by the Brütal Warlords.
So we should not let anyone edit profiles except their own.
It's just a Wikia thing. It's happened to me before, but it's no biggie. Wikis typically employ a rule against editing other people's profiles.
Yeah, admins especially get their profiles wiped out or vandalized by malcontents. But all it takes is a quick rollback and block and order is restored.