Something I have recently realized (not discovered, but reflected upon and realized) is that people can feel real feelings of betrayal for works of fiction. It seems a bit terrifying to me but I suppose it makes sense. You get it right that tags, descriptions and theme can tell you a lot about how things will go without saying much. I'll do my best to make things clear from the beginning in the projects I do.
About being offended, that happens all the time, even with my favorite works I get offended/annoyed with particular scenes, but not with the whole product. What I was really worried about was doing some kind of harm, but PinUpCitizen's text has reassured and calmed me on the subject. That's not to say that what you said doesn't matter, thanks for sharing your opinion.