I think you totally underestimate the risks associated with things you don't want to see!
Some people might get blind if they see a girl having fun with sex and kissing another girl during a 3-some.
Other can't get a hard on, if they know the girl had any sex before, so their girlfriend needs to be a virgin (btw virgin MILFs are the best).
For me it's more important that things are new and surprising, I don't need tag about blow jobs, vaginal & anal sex, as the tags are not used to find what you like, but to avoid what you don't like. So I wonder how many people filter to avoid vaginal sex, very important tag in porn games.