Regarding #2: there are some writers that can make me try anything. But they're few and far between. Generally speaking, there's a lot of fandom tropes that just don't interest me--kidfic, long term established relationship, curtain fic, etc. I don't even bother to click on the stories so my lack of comment has nothing to say regarding the quality of that particular fic.

I think all of this is much easier in a large fandom, you can kudos or comment or not and stay under the radar to some extent. Every comment and kudos in a smaller fandom like this registers.