I'll disagree with you as well.
There are other F95 creations that start with the tags and content you are requesting, and that is where I recommend those wanting that content go to get that content.
As for telling the dev to just change his focus and add in new tags years after he started telling his story - I think that is unrealistic and would change the story and focus.
The other thing that is easy to ignore when someone pops in to ask for NTR/Sharing/Swinging (beyond the Janelle/husband swinging - already well established as part of the story) is:
Time
You are recommending that the dev take time away from telling his story his way to add in events/stories/relationships that do not exist just so you can get your fill of NTR/sharing/swinging.
Why would anyone who has been supporting Jestur for years want to see their content cut/delayed just so you can get NTR/Sharing/Swinging?
I'm one of the people who don't want to see Jestur slow development, redo story lines, change relationships etc. just to feed the NTR/Sharing/Swinging desires of a very small minority of people, many of whom do not support the dev with $.
Sure - we all have our preferences, but I think making NTR/Sharing a part of Ripples and increasing the Swinging beyond the well-established part of the story is more: Tail wagging the dog.
IMO - this is not that story!
Cheers!!