My very 'umble opinion is that, this being an adult site for use by adults, the only time threads should be deleted is if someone raises a formal and justifiable complaint about the content thereof.
The name of the forum (Pub Thread) is a bit of a clue....I've seen no conversation here that hasn't taken place in my local, and the joy of having a mixed membership is that theres always someone to jump in and tear a strip off anyone they think has overstepped the mark....its happens on every "controversial" thread, and in my view, is an excellent opportunity for some sort of 'education'.
I've said it before, but even people who you may think have expressed extreme views have always had some personal experience that colours their judgement. I mean I've had first hand knowledge of reverse racism of a sort that would have me shooting in the streets if it was me it was happening to, but it was outside my geography so I could afford to ignore it eventually, so people shouldn't be so quick to judge...but by all means argue your point.
Suppressing debate of the sort we've seen is invariably a bad idea whatever you think, and I'm sure most people would agree, including all of those engaged in it.
And if Bat wants to break peoples contract thats fine, its his website.