I recently got one dm from a fan coming from webtoon or should I say, a long wall of text in which he tore down my English, it wasn't exactly a hate comment but it hurt a lot 
It began with a long 700 words fancy introduction with lot's of fillers explaining how he wasn't obligated to give critiques but he goes out of his way to give them anyway, after the long fancy paragraphs of unnecessary introduction he started tearing down the dialogue in my comic Raccoon Heart panel by panel, explaining why this and that is a bad choice of words, at one point he complained why it was bad one of the characters reacted saying "No Way" because it doesn't fit in the context without coming up with an alternative interjection that fits, he kept nagging me about tiny details such as the punctuation, commas or the lack of.
Then he tore down the story synopsis telling me it's a terrible description, he even stated I shouldn't put my comic under the comedy tag if I'm not skilled enough to write in a funny way.
I don't feel like categorizing my comic as comedy was a mistake and comedy isn't all about the funny dialogue, it's more about the awkward situations characters are put through. The comedy isn't very present in the first chapters.
I know I should've know better but it's a lot easier to just say "In the panel 32 you should've wrote X instead of Y because X fits better in the context", that way is a lot more simple and a lot less degrading to the creator given that English is not his mother language.
Also it's true my comic gained 5.554 new subscribers in 27 days for almost no reason and that I should step up to show I deserve this unexpected growth but, at the end of the day I make comics just for fun, no matter how many people subscribe it.