My first (not completely serious) thoughts are: their arse handed to them and screenshots.
However, is there more to it?
Why do some long term posters come back again and again with the same arguments that haven't worked before? Do they think that it might work this time?
Then there are the 'my Trans friends are lovely' scolders. Do they really think that we should forget safeguarding, biological reality, single-sex provision etc. becuase they have lovely friends?
Lastly, the thread ploppers. If we are lucky, they might even reply. The one last night might have been getting sexual kicks from it, but we have had other ploppers who just appeared to want to tell us how mean and nasty we are.
None of these (that I have seen) have brought good, well reasoned arguments to back up their points. Maybe that is what causes people to scold and run, or plop and run, as when the arguments cannot stand up to scrutiny (or they have the screenshots), they stop posting.
This then brings me back to the long term posters who are TWAW. I would not like it if they were driven off this board, as it is a public board and as long as the T&C are kept to, they have every right to post. It must be hard posting against the main opinion on any matter, so they must get 'something' from it. Maybe Chris et al will be kind enough to explain this from their point of view?