@Napiform will our 100 posts have to be made within that thread you start, or can posts we make in the course of our normal Neocodex activity on that day count towards it too? Sorry if this sounds too dumb...I've never participated in one of these before.
Make them in any thread you want. Only post increasing forums will increase your post count though. The thread I start is just a place for conversations to happen that don't fit in another thread, and in the last 100 post day, got moved after the day was over.