I can't see any particular distinction between "Brits" and others when it comes to these kinds of issues. There are obsesssive and illmannered people on both sides of the Atlantic, and thoughtful and interesting ones on both sides as well.

The same kind of things happen in threads about UK politics and US politics. Both are just as liable to degenerate into shouting matches and partisan exchanging of insults, and when that happens closing them down can be the best thing to do ( though nevet deleting a whole thread under any circumstances, I would say).

Seeing this in terms of prejudice against "Brits" (a term. I detest, most especially if it is ever misapplied to me) seems mistaken. That would even be true if a close analysis indicated that a higher proportion of posts affected were from people from Britaiin - prejudice is not the only reason for such differences, if indeed they do exist, which I am very far from accepting as being the case.