I'm not too concerned which kinks are in/out of the story in terms of my own personal desires. I know some devs have their desired kinks and write a story around them, while I'd say I am more story focused, and the kinks are wrapping around it instead. This is why I'm not so flexible on my plot outline, but much more flexible on specific kinks in scenes (if it matches the vibe/sensibilities of certain characters/story beats). I'm almost always open to kink suggestions and will consider anything if it seems to match the narrative, but on the other hand, I'd never listen to suggestions for character motivations, desires, and story elements. I feel like some players are getting true enjoyment from some theory crafting too, and being able to throw in subtle hints here and there I think make it more fun for a certain subset of players.