Yeah, I roll my eyes whenever that happens. It happens at least once a week nowadays. I don't even bother engaging with it, nothing productive would come of it. it's not enough for these people to have difference in preferences or legitimate criticisms, they also have to make up lies and mischaracterizations so they can feel more justified in their dislike.
Oh, it's a dozen people I don't care about all circle-jerking about how terrible I am, lying about me and my stories where they think I won't see, and going the 'how dare you try and be moral, don't you know everyone's a terrible person!' route.
Oh, and of course my 'butchering of characters'... by writing them according to Canon, not Fanon. These people really do have nothing better to do, do they?