User blog comment:Nmcconnell/"Please log in to post a comment on this wiki"/@comment-24852106-20140511160755/@comment-452-20140516015439

Did you check with Wikia Staff, like I did?

Wikia Staff have confirmed that it is possible to block anons from leaving comments, while leaving the main namespace fully open to editing by anons, which makes Flawless Diva's post false.

edit: They even linked me to the documentation on the subject: http://www.mediawiki.org/wiki/Manual:$wgNamespaceProtection