I don't know if I'd go as far as calling that kink shaming. Kink shaming, to me, is hearing someone likes BDSM and calling them a freak.
Innocent!Finn prompts are more due to perceived popular headcanon. Fandom is often a hivemind and if someone comes up with a popular characterization trait or backstory about a character, people tend to adopt it as fanon.
Tropes like modern AUs or coffeeshop AUs fall under the no shaming rule because they're story plots, but I don't think saying you don't want a certain characterization or that you're annoyed by it isn't kink-shaming. You're disagreeing about a way a character is portrayed.
Saying you don't like or want a fanon headcanon - and this goes for the bottom/trop trend, which is offensive and annoying in its own right - is not kink shaming and you have every right to say you don't want or like that characterization. Fandom has a tendency to simplify characterization anyway.
Re: Curious
Innocent!Finn prompts are more due to perceived popular headcanon. Fandom is often a hivemind and if someone comes up with a popular characterization trait or backstory about a character, people tend to adopt it as fanon.
Tropes like modern AUs or coffeeshop AUs fall under the no shaming rule because they're story plots, but I don't think saying you don't want a certain characterization or that you're annoyed by it isn't kink-shaming. You're disagreeing about a way a character is portrayed.
Saying you don't like or want a fanon headcanon - and this goes for the bottom/trop trend, which is offensive and annoying in its own right - is not kink shaming and you have every right to say you don't want or like that characterization. Fandom has a tendency to simplify characterization anyway.