Some of Skyrim Nexus top mods(Leaving out ENB and various Graphics overhauls and items):
Dimonized99 Skin Texture(Nude mesh better skins)
CBBE(Same nude mesh better skins big butt/boobs)
Animated Prostitution (Animated Sex Mod)
Various Better Companions(Collectively have more downloads than any other mods)
Some of Dragon Age's top mods(excluding items)
Better Sex(Nude mod/enhanced sex mod/extended scenes)
Various Companion mods(changes the looks of companions, top ones being Leliana, Morrigan and Isabella)
Each of those mods have millions of unique downloads. There is a reason people download these mods, be it because they want virtual porn, or because they are unhappy with the current offerings the base game provides.
I can guarantee there are far more people that play these games that use those mods and want those mods than there are of those who don't.
Most people don't play RPG/MMORPG just to beat the game and get to the endgame. They play them for the stories, the romances, the companions and the world they can immerse themselves in. How they play it is no one's business but their own, and I firmly believe that if Bioware won't satisfy these kinds of interest because they are afraid of the backlash then they need to release a devkit so the fans can do it themselves.
Seriously Bioware I know Frostbite3 is pretty, but so is Unreal4(or whatever number it is now) so next game please use Unreal or something other that EA's frostbite. Or the very least take the amount these mods have been downloaded into account and how many threads on these topics pop up and know what you're fans really want.