I'm poly, and poly acceptance on reddit is very very low in most places. It's funny how that works. Homophobes are all "teh gay agenda, trying 2 convert us" and LGBTA+ is like "no, fuck off, we just want to live, thanks". Poly feels the same way - I mention poly and people push back that it's wrong, cheating, doesn't work. Yeah, well, it doesn't work for you if you're not poly in the same way if you are straight, you don't want to fuck your own gender.

I don't know LesbianActually because I don't hang out there for obvious reasons. AITAH doesn't completely surprise me, it's a mainstream sub. Lesbians are probably only marginally shunned, but poly? Shunned, I'm sure.

So basically, while I'm not blaming you........... you didn't know your audience was all. Probably better to seek advise in lesbian/poly friendly spaces. Again, don't know lesbianactually, but I would expect r/lgbt to be a little more accepting, and perhaps /r/polyamory - I think that's the subreddit, I don't hang out there. (In part because while I am poly, I don't practice currently and only ever did for a short period of time, so I hate reading about others' happiness lol)

I've no clue what your submission was about, but I see enough pieces here to not be surprised it didn't go well. I again don't blame you. I think there's spaces on lemmy where it also wouldn't go well. Poly is a fringe thing to be and acceptance is somewhat low, which I think is a shame because I think if more people realized they were poly, the world would be a happier place as there'd be rather less cheating.

I'm sorry you got banged up over there. :(