The only way to deal with this is to discard invalid suggestions and keep the others in the back of your head, to improve your game using them when possible.
90% of them are very good suggestions, to be honest. It's really just a matter of managing workload. I don't want to start biting more than I can chew, that's a good way to end up with an abandoned game.
No worries if you feel like the kind of variations I suggested are a necessary sacrifice for productivity.
It's not just the variations in a given scene. The problem is that it snowballs from there. For example, you can see how Deb's path makes sense when the MC is on board. She introduces him to femdom with face sitting -> she introduces orgasm control which is something she likes -> she gives him a ruined orgasm -> she makes him fuck her with dildo instead of his dick -> she cages him -> ??? let's say, for the sake of argument, the next step is giving him a very good orgasm as a reward... but while pegging him...
Now, let's say in the "she gives him a ruined orgasm" part, I give a choice for the player to, quoting you:
For me personally I would enjoy a variation where the MC gets off properly, at least most of the time.
getting off properly. Would that player then be happy in choosing to fuck her with a dildo? To be caged? To be pegged? probably not. And that's the issue: it's not just adding a variation to a single scene. It's creating a completely new path where all scenes have soft themes of femdom, instead of kinky/chastity related ones. Making a variation is not that hard. Making a completely different path is. And then all the conversations they have about sex will have to reflect the choices taken, so you also have to take into account the amount of extra dialogue needed. And Deb in particular already has another path for players that don't like femdom. It would just take a lot of resources to make yet another one but with light femdom.
What I did actually try was Emma's route which I have to say I am quite a fan of as well.
And this here is more of what I was aiming for with the game. I would like that everyone, whether they like hardcore stuff, vanilla, light femdom, light maledom, more hardcore femdom, more hardcore maledom, etc, have
some path they like. At least one of the girls should be good for the kind of kinks they like and level of vanilla/hardcore they enjoy. But providing all those options for every single LI is almost impossible. The idea is that all of the LIs can offer something a bit different in the kink department and then the player chooses his favorite. This was never intended to be a harem game where a player needs to like all LIs, or several of them. You'll have to pick just one anyway, starting early on rejecting those with kinks you like less just makes it easier.
Adding the non-use of the nipple clamps would probably double the current pictures of Jen's scene (posing her with and with-out) and i believe the same would be true for Deb's(?) strap-on scene.
There are other things that are easier to implement though. For example, an option to not add the nipple clamps should be easy to implement because it's just changing a few renders and some lines of dialogue in a given scene. I need to think this through properly, but I don't think it'd snowball to have to change all future scenes with them. So, I might add this option in a future update.
The MC knows that Kim absolutely cannot be trusted and will seek to hurt people on a whim; he may not want to expose Kim to her boyfriend because of her threats to expose him in turn, but he could at the very least hint to Emma that she's not ideally suited for this.
This is another really good suggestion. A player can get to that scene in several stages with Kim: he can have let her walk all over him, he can be cheating on Pete with her, he can have accepted to help her but have done nothing sexually, he may have flat out told her to go fuck herself. And the dialogue should adapt to all of these options. And, sometimes, I just miss the mark in some paths. It's true that it would be impossible to make a chapter 5 with Kim, and another chapter 5 where the MC tells Emma to absolutely not trust Kim and instead ask some other lawyer for advice. That would require too many scenes being written and rendered in two alternatives.
But I could easily add another choice where the MC at least suggests it and then Emma, stubborn as she is, shuts it down or asks why, and the MC has to grudgingly accept to involve her anyway. Later on, that choice could even lead to him telling Kim she wouldn't be there if it was up to him, and she could tease him a bit about it, adding a bit more fuel for that "Ugh, I hate her" feeling players on that path might have.
I feel like this could perhaps work better in the path where the MC tells Kim to fuck off from the start. Although I'm always a bit reticent to adding "fake" choices. It could lead to a bad feeling given a player the choose to pick "Don't let Kim get involved in this", and then Kim gets involved in it anyway. In these cases is often better to not give an option at all. I'll have to think about it.
Either way, this is the kind of feedback that's very useful because it can get quite hard to have all possible combinations of paths in my head and then write dialogues and choices that are good enough in all of them. Having more people going through the game and saying, "in this particular path, this particular thing feels a bit off" helps a lot to identify possible issues and think if it's easy/worth to try to fix it.