Back at you.
Some people are unhappy with parts of the game that are being changed constantly, in their eyes, for the worst. They still cling to the game for many different reasons, like being satisfied or entertained by other types of content, or the community, or whatever. The usual "just quit the game if you don't like it" is not only offensive but misinformed. I may be especially scathing with what SE has done with a product that I have by now probably poured more than a thousand bucks in subscription alone into, that I used to be the audience for, and that is now considering me as an inconvenient thing that they would rather discard or alienate away. I do feel that I have a right to make myself heard because a game that's been a non negligible part of my life, that I pay for, have supported for years through many other means even, is slowly being butchered for another audience.
The real issue is that a lot of happy customers feel like we, older players, are a threat to their game and enjoyment, or our existence and opinions are somehow offensive to theirs. In reality it's become exactly like politics. We do not see eye to eye on what the game should be, and just because the developers suddenly swing your way doesn't mean I'm going to shut up. "White Knights", or who the word truly is aimed at, aren't just content to "be puzzled over why complainers dont quit". White knights will consistently show up, start up ad hominem replies because they cannot actually address the points being made. White knights will bait discussions out of constructive criticism into flamebait and mudslinging. And I'm perfectly happy to accept that the other side will also show up in happy bubbly threads about the game and constantly crap over their posters in the same fits of rage, because yes it goes both ways.