Remembering whether certain users are, in your opinion, ‘nasty’, is a world away from dredging up posts those users have made on other threads. That’s because the post-dredging invariably fuels a stream of invective and spite, which is kind of ironic when the invective is directed at posters who are themselves being attacked for being ‘nasty’. Is that how you plan to eradicate perceived nastiness on the internet? By being nastier back? How successful do you think that will be?
It’s not in the spirit of reasoned debate. In my view, each thread is a separate self-contained discussion. Unless it’s the ‘are skinny jeans out of fashion’ thread, which comes around every three weeks and is the same every time!
You can disagree with other posters’ stances on a thread but generating such bile that you search for that poster and announce to the thread, e.g., “Yeah, nobody listen to HER because she’s a bitch! Look at what she said about dog owners in 2019!” feels unpleasant and spiteful. Like, I’ve decided that you’re a mean girl and now I’m going to make you change your ways by being even meaner. Not civilised, not adult, not reasonable.The posters doing it can see no fault in their own behaviour, of course.
I recognise names of posters who have disagreed with me on other threads, some of whom get quite vicious when I dispute that e.g. taxes are too high in the U.K., but so what? I wouldn’t dream of saying, “I’ve seen you on other threads and you are horrible” or whatever.