Hey all I'm a bisexual that's only just recently realized it, so I'm learning all sorts of new stuff lately and I'm wondering about nonbinary genders.

I recently saw a redditor that stated they were nonbinary but regularly posted sexual images to realgirls and lesbians and other pages. I don't actually have any issues with that (they are obviously biologically female) but it did make me wonder, is that a contradiction? Is there a nuance I'm missing here?

It seems to me that posting in those communities would undermine their declaration to be nonbinary. But I also have very little experience or knowledge about the world of nonbinary and their use of pronouns. If anyone could help me understand the difference I would be greatly appreciative. Thank you!