I think we should allow 大乱闘 on the 大砲禁止 threads.
The difference is that if you are on a 大砲禁止 thread, you will not suffer the normal consequences for losing the 大乱闘.

One of the next updates is going to be a simple animation for the 大乱闘 battles.
Right now is it too hard to read the 大乱闘 log.