In my opinion, modding is fine. Actually, I like the idea of people tweaking some game textures to take more "control" over the personnalisation of their character.

Where I'm not fine, it's when it come to harassment. We all have different sensibility towards it, some will just shrug it off while other will take offense. I think it really depend on how deeply you immerse yourself in the game. And on that point, I can understand why OP is worried about it.

To me, modding is a chance as a PC player, and it's great that SE tolerate it. But if people start to complain, they will take action one way or an other and it will come as a real disappointment for a lot of people.

Be responsible and only take NSFW pictures of your own character and other who are fine with it, if you want to post it on a social media. We have nothing to gain, as a community, by defending this kind of behavior.