tempest in a teapot
Sounds like you've dealt with Keith before....
It was a split decision. The thread started out as a run-of-the-mill literary review, along the lines you describe as fair game, and I left that. It was only that one last post that got really personal.
At this point, though, the thread's more than half about the deletion. That's kinda silly, so I'll keep it short and get outta here.