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Who's writing all that content for Wikia (a for profit wiki)? it's starting to rival wikipedia.

The people turned off by overzealous culling at Wikipedia.

Isn't Wikia also created by Jimbo Wales? He's pushing the content off of Wikipeida to his for-profit site! Collusion!

Wikia is a for-profit supplier of wiki hosting. bigbangtheory.wikia.com is a (probably not-for-profit) fan group that uses wikia's product.