Having a forum dedicated to the MB Engine is useless, not enough use in typing up for so very few people to make use of it. If you have a TorqueScript question, just use the coding help thread (you are allowed to bump it). Regarding the actual engine, not much is needed to be said. Just look around on the forums, there's a lot of posts about the engine that will find bits and pieces. Anything more would be a waste of our time (which we already have little of with work, school, Platinum/PQ and other projects that we dedicate our time too).
I am a programmer. Most here know me for being one of the major contributors to Marble Blast Platinum and PlatinumQuest.