The biggest problem with zero G sex would be the cleanup. There would be cum and other bodily fluids just floating absolutely everywhere. That might seem hot in the moment, but I assure you that Houston will not appreciate it upon your return to earth.
#1 is an issue for me. As someone who identifies as bisexual, it's annoying to see any male content being automatically downvoted even though it's explicitly allowed on a particular subreddit.
It's a fun phase to be in
And that intervention would probably take a while to happen
Historically the admins would just look the other way until Reddit started getting negative press over it. If not for the negative attention those subs brought to the site Spez would probably still be hosting jailbait, altright, and incels.
Just a thought, but maybe you shouldn't be posting face pics of people without their consent.