I think quite a few people have argued against having a lot of boards in the past. Things just get too cluttered and there's more chance of the wrong topic going on the wrong board, which can be quite annoying.
Considering we are a DL, TB/AB, BF and Incontinence forum, it would perhaps be best if we just stuck to that as the main feature of this site. If you have anything else to say, then use the aptly named "Off Topic" board. And just looking at that board right now, we have a lot of diverse threads, but there isn't a significant number of specific topics that would warrant another board.