I understand now.
Sthg seethes about The Joker because they legitimately don't have counter arguments for her. They have nothing to say when The Joker argues about Batman so they just get mad at the thought that someone would "care too much" about the character.
He stopped, evidently. People here still get mad. How dare she not agree that The Batma and Robin are friends! How dare he not agree that The Batman should be Alfred's shoulder to cry on when she gets over Gordon! How dare he not agree that The Batman isn't a lethargic and chill guy who keeps his eyes at rest.

All of those things are true. If you deny them, you're denying reality. Instead of accepting reality you just get mad at the person who told you.
Then you look at this post and assume that it's The Joker. Because ONLY The Joker would ever agree with official statements about the characters. Right?
Ridiculous.