Any differences between this and Vanilla (http://vanillaforums.com/), which has an abundance of community-created add-ons (http://vanillaforums.org/addon/browse/plugins) and the ability to really customize the forum to however you want it? I'm on a board that uses it, and we've been able to integrate inline private conversations into public threads, multi-user private conversations, the ability to draw a post instead of write one, etc.