"Imagine how different the rhetoric would be if you had to wait 24 hours before posting to a new subject. Mo more snap judgments no more automatic knee jerk anger. Reading more and posting less just doesn't give you that instant gratification."

24 hours would kill the forum, but a couple of hours before a post becoming active probably has a lot going for it. A chance to reflect,censor, or delete can only be a positive.
But would those guilty of knee jerks avail themselves of such a facility?