"You draw lots of kids does that mean you like shota?"
"You draw lots of black characters do you have a fetish for black people?"
"Update now. Or else."
"I'm a proud American and here in AMERICA we don't like-----" (proceeds to complain about content/update schedule or paywalls)
"I hate this series it's fucking garbage, stop updating it. Update your other series instead that one is actually good."
"You should draw the guns more realistic. I can't tell the make and model and that's problematic. It's lazy."
"Nice try, but add color."
EDIT: Remembered and had to add this one
(Talking about an comic drawn in an anthro style) "This series is racist because it doesn't have marsupials in it."