Things that turn me off while reading yaoi:
1. The stereotypical couple (ex: uke looks like a fucking middle schooler while seme looks like a college student)
2. Huge age gap (ex: 78-year-old man x 25-year-old man)
3. Incest
4. Pedophilia (read this one manga where the seme was a fucking 11-year-old fucking his uncle who was the uke)
5. Slutty...... reply
I think it's because when they get jealous that their lover is talking to someone else in a friendly manner, they can just add a sex scene so it will get more attention. It's a very popular trope, to be honest. 1 reply