If I'm understanding you correctly - your point is that these stories quickly run out of steam since in ntr after awhile we get it, the girls a slut, the guy's a doormat, etc, it gets boring.
And the same holds true for ntrs/sharing/swinging, after awile, the thrill is gone - once she gets banged by others and moves down the progression of more and more lascivious acts, eventually nothing's left and boredom sets - thus drawing out the introduction is important.
My point was only about how constantly suffering defeats dilutes the feeling of loss, making it less impactful when you learn the truth, and harder losses quicken this process.
Sometimes it is just better to get hit all at once, beat your birdie to it, and move on. One scene feels more satisfying than slowly guessing from hints, and learning the truth at the end, hence it might be just perfect to quench your Netorare thirst. It might be more productive to design more scenes like this with different scenarios. I don't get such a strong feeling exploring the recollection room.
There is always a need for some weird anchor to keep the MC in suffering, or making him stupidly oblivious, hence it is repetitive. After the truth gets out, it loses its charm.
When MC fucks a new girl, it doesn't feel like Netorare anymore, unless you also lose her, while in Netorase you can enjoy of having a choice.
Well, if you were to constantly take loses like that, then just better kill yourself.
You lose completely connection with the girl, and rebuilding like it was before isn't possible, she is a slut who cheated on you. There won't such a deep feeling anymore, unless you turn back time there will always be a hint of doubt.
The plot so determined, it kills the joy really quick.
Edit: Also this novel already has a huge vanilla and Netorase/sharing buildup, so I feel that very long and agonizing Netorare isn't required. I can just enjoy the bad endings. But as you can see from Daemon's posts, there's still a demand
