I think that a moratorium (for a month or two) on PUA theorizing would be better for the LW community than either a permanent ban or the continuation of the currently-entrenched battle on it, either of which would probably drive away a number of valuable rationalists. (Goes without saying that bashing PUA theories would also count as trolling during the moratorium.)
I want to see what the support looks like for this. Below is an informal poll: vote your preferred option.