Eh... I used to spend a lot of time on GCJ, but it has been a long, long time. I get what you were going for, but in my view the posts there were more about LARPing Gamers. Imo this post fell in the uncanny point between that and open criticism, which is why it wasn't received well.
Something like a "We did it Gamers! The cunny tag lives!" approach is what I would have expected I guess?
And yeah, I assumed pedos were all over this game. And I know and agree that steam could moderate the tags and could do more. Genuinely didn't realise this was such a case though, and it seems niche to a general audience, which I think did help with the post's reception.