That's in the line of something I posted somewhere on these forums (too lazy to look up my own post
).
BAD developers run out of ideas, look through the requests, and then go around asking "do you want me to add X/Y/Z?".
GOOD developers already have a plan for the game all the way to the final chapter, and IF someone makes a radical suggestion that the developer actually likes, but which falls outside the scope of the current plans, the good developer takes note and considers it for his/her NEXT game, but NEVER for the current.
Currently, there are some big discussions going on about NTR. And one of the complaints is with developers adding it halfway the development process "because some people asked it and it won the poll that was open to literally everyone and his dog."
About a year ago, the exact same discussions took place about futa content, and the exact same thing was happening back then.
Same thing happened with gay content, same thing happened with BDSM (in various variations, upto vore..).
It's quite tempting for a developer to give in, and
maybe attract a bigger audience. But, there will always be loyal members of your current audience who feel betrayed. And even those who like or don't care about the change subconciously deem you untrustworthy. On top of that, the game as a whole becomes inconsistent, the addition just won't mesh right without redoing the entire project from scratch. So whatever it is: stick to the plan, save new stuff for the next game.