So it seems that, in the near two months since I opened this thread, one or two things have been proved.
One is that Flat Stanley doesn't listen and is not prepared to behave with any good grace, but is a disruptive influence who will not moderate his behaviour.
He is therefore banned.
I'm posting this here for a number of reasons, including acting as a reminder that I am quite prepared to hand out bans for such disruption. If anyone is in doubt, banning for such a reason is in accordance with the AUP.
Everyone was warned – and certain 'suspects' were given the opportunity to prove themselves.