Board Thread:General Discussion/@comment-27713305-20160930222318/@comment-28822533-20160930222556

Force redirecting to third-party sites always carries a risk associated with it. While you can argue the forum site will be constructive and not harmful to any user, Wikia are very cautious on redirecting to third-party sites, similar to the use of. The only situation I can see Wikia doing this is if it's a very reputable site, such as Google.

As a solution I would suggest you use a soft redirect instead.