Reading Don't's

What's something when it comes comics, novels, or fanfiction that will cause you to not read it or drop it later on? Like writing style, characterisation, etc.

Personally, I will not read anything that's in first-person or second-person. Can't really stand it. The only time I read anything of the two was for Song of Achilles. I also will drop a work if I hate the ML. I have dropped so many manhwas and manga because the love interest was straight up trash and I want to throw a brick at their face.