I'm looking for a word or phrase that means something along the lines of "the exhilaration of taboo".
Here's the context for what I'm looking for: "It was strange and [blank] to walk around and see everyone's age so blatantly public."
Edit: In the example sentence, one might replace [blank] with "gave us a frisson of Schadenfreude" or "... of superiority". Knowing others' ages is not taboo, I think, and no age is to be looked down upon, but one imagines some do.
I wonder if our BE phrase felt a bit naughty would fill the bill in the context you give.
How about: "it was strange and transgressive"?
Since what is breached here appears to be a norm or convention rather than a taboo, how about 'provocative', which is often used in a positive sense: it is not only base or improper sentiments which may be provoked but also serious matters like political opinions or aesthetic judgments. At the very least using 'provocative' leaves room for some ambiguity which is itself, well, provocative.