Yup, definitely. Not really on Tapas, but had that happening on other platforms.
I mentioned it in the past already, but overall, if an author is being an ass to their readers, chance is I'm gonna stop reading the story as well. This includes constantly complaining about lack of subs or comments (YES, we all complain about that from time to time, but if you're doing that 24/7 under every single update it gets, well... tiring), being ungrateful/demanding readers interact a certain way (e.g. creators saying that readers commenting with "nice job!" or "beautiful art!" aren't "trying hard enough" and "shouldn't even bother to read their story") and attacking readers/treating them like crap for daring to ask simple questions. This is especially true when it comes to LGBTQ+ and minority representation: if someone complimented your comic, politely asked you a question about an issue they genuinely don't know much about and even apologized in advance for their ignorance on the matter and your first reaction is to attack them and call them names instead of replying to their question... I'm out. Like, I'm not saying that you have to reply with a full on essay with a bibliography + source links or anything like that, but dammit, at least be civil to readers who show an interest in certain issues and are actually trying to learn more about them? ._.'
Also, should go without saying, but anyone participating in any form of cyberbullying is a huge nope to me.