Clearly there are misunderstandings where people think they are being referred to, when they were not. We've just seen such a misunderstanding on this very thread.
If they then see this is bullying, stalking, being followed across threads or whatever, that doesn't mean that it was anything of the sort, which is the point being made upthread. Someone can disagree with a poster about more than one thing - in fact where people are politically on opposite sides, that is quite likely. If I post to say that I don't agree that Johnson was a good PM on one thread, I am not likely to agree with someone who says that he has been treated badly one another. I might not even notice that it was the same person saying both things.
Whilst I think that threads like this can clear the air, they can also point suspicion at the innocent, and oblique references to 'some people' can cause posters to wonder if they are being referred to when they aren't. They can also be very exclusionary for those who haven't been posting long and have no idea who to believe or what to think.