I'm for more reasonably sized big boobs. Mega just don't look good on a lot of models and tend to make the animation even harder with all the potential for clipping.
Having to repeat unchanging scenes a tedious amount of times to get affection points or whatever in order to unlock the next scene. Foot of the mountain is the worst perpetrator of this. Another is sanbox games with hard to navigate screens. I have spent dozens of minutes at a time trying to...
gameplay that can give you game overs especially if it requires you go back potentially hours of saves to correct things. Happens a lot rpg porn games and iirc I got filtered out of seeds of chaos due to this.
I feel avoidable NTR games actually put more effort into their NTR routes than unavoidable. Especially if it has to last longer. Unavoidable tends go straight to the bottom with nowhere to go.
Anyone doing highly addictive drugs like crack or heroine shouldn't be able to just check themselves out of rehab. The addiction clearly inhabits their ability to make a sound choices. Pull in a neutral third party to decide.
Preferences are a wild thing, I like NTR with all the heartbreak and drama, but I steer clear of cuckold hotwife style games where you intentionally pimp out yor lover.