Forum:Disabling anonymous contributers from commenting

Comments are now disabled on Smurfs Wiki because of anonymous contributors posting junk in them, which the admin, Vic George, announced in this post. He would like to reenable the comments but with only registered users able to comment. I advised him to come here, but he has not started any discussions. Is there a way to do what he wants to do?--Fred (talk ) 01:17, December 11, 2011 (UTC)