I will tell you why people dislike when you call them out for things: it gives off the impression that you think you're superior. As if you have the right to pass judgment on others and only you alone. I'm not saying this is definitely the case, but this is how it feels when someone starts barking about someone else's game. And most of the time, the people who do this ignore their own mistakes which just makes them seem even more narcissistic. And contrary to popular belief, being formal and overly polite just makes it worse, because it just strengthens the feeling that youre trying to scold somebody from a higher place. Do not do that.

I understand, seeing somebody play in a way you don't like can be a little annoying, but unless they are having an obvious/objectively significant negative effect on the group, then leave it alone. It's not our place to pass judgments on others (and this is a reason why i feel like the current Mentor system is poor, separating players into "crowns" and "no crowns" was a terrible idea), and even if we do need to let someone know they're really, REALLY bringing the group down, you need to do so in the most chill way possible, or youre just gonna cause more damage.