Sony and fansonly are currently using an old copy of WWWThreads. The database schema used to consist of a seperate table for each forum. This turned out to be 1, insufficient and 2, bad practice. Last I heard from Sony they were ordering a new server to handle their forums and they were going to be upgrading, but I haven't heard anything from them since.
I don't get much feedback from many of the larger sites so I'm not sure of a limit on forums/posts.
