User blog comment:LS11sVaultBoy/New Wiki Feature/@comment-2053588-20130523170438/@comment-3455248-20130603170300

It's a lot more than just a category - it's a different namespace. The main issue is not the setup, however, it's the maintenance. For example, on the Red Dead Wiki people often create posse pages in the main wiki, which then need to be moved/deleted by admins. Since posses tend to have rivals, there is also more vandalism in that area including racist comments, etc., which again places a burden on the admins.

I'm not saying a crew space is a bad idea, you just need to be aware of the workload before embarking on it.