Chaos Writer, Agent of Bewilderment

I sent back:

So this situation is done and over, but this is a PSA to not be shady to your fanfic writers... Again.

In the scheme of things, this isn't the biggest deal of shitty comments, it's the behaviour and entitlement behind it that causes problems. I'm not giving an inch on letting this behaviour slide. You're not 100% on a fic? Exit it. You don't like a detail? Leave it alone and exit the fic.

I might be overreacting (I do have rejection sensitivity, this shit makes me not want to post fics anymore), but if a person thinks they can get away with this then they almost always will escalate the behaviour. I don't want other writers to get hit with this, especially younger, newer writers who might stop writing in response.