I just don't think you've really evidenced the kind of personal attacks that you keep alluding to. The
original post you highlighted in this thread-chain was pretty inoffensive.
The discussion that the post had followed, regarding the guy who said the game was definitely patched because free kick tactics worked, was fairly civil. It was still characterised by frustration, because – again – it just beggars belief how desperate people are to believe PES is actually good (and "Konami are nice, actually"). All critical standards go out the window. Somebody presents very solid evidence that the game files were untouched, and a guy flatly contradicts it with something a moment's reflection will tell you is not good evidence (you yourself called it session variance).
It is good to point out reasoning flaws in the way people think and talk about this game, because without it, it's basically Reddit or some other space where opinions and arguments no matter how poorly formed spread like wildfire if they appeal to the underlying biases and desires of the audience. It just muddies the waters to let such stuff stand.
So what I've seen most recently are responses to lazy thinking and lazy arguments; responses that are, sometimes, a little short because it's tiring having to point it out again and again. Where is the really personal stuff? I can only think of a couple of posts in recent times that have got really personal, and they were also called out.
If someone says that they are liking aspects of the game, it doesn't merit much reproach around here. It might be alien to some, but it's accepted. However, if someone says they are liking the game because it's "better than FIFA", they get laughed at (because (a) FIFA, like it or not, seems to be a proper game by comparison, and (b) even if not, it's a fallacy of relevance). Likewise, if someone says the game is actually
really good and the problem is that players aren't playing it right, they also get roundly mocked. That's because we can see through what it is: copium-laden excuse-making for a billionaire corporation who has shafted its most loyal supporters, who are effectively being gaslit when they're told the problem isn't this half-arsed mess of a product, but actually the problem is in the eye of the perceiver – Git Gud.
It is understandable when such poor arguments are met with derision, such is their frequency and such (often) is the arrogance with which they are posed. It needn't and normally doesn't betoken toxicity.