I'm mostly targetting the AITA and relationsip_advice subreddits, there are many time where people say "Just reverse the genders and people would react very differently".

I agree with these claims several time, and it's very likely that there is an "empathy" gap where women get support or understanding and men don't.

For example : This post is about a guy whose GF won't give him a blowjob (or won't let him finish in her mouth, the post is unclear) and almost everybody just tell him to deal with it and stop wanting it. While at the same time another posts about a girl whose BF won't go down on her get responses telling her to dump the dude.

I've also seen two AITA posts about a parent wanting nothing to do with their born child because they didn't want it when the pregnancy happened but the pregnancy was carried anyway:

You guessed it, the woman had tons of NTA saying she's not forced to get involved in the child's life. And the man got almost unanimously YTA saying that if he has sex he should be ready to be a father.(I wanted to put the posts but unfortunately one of them have been deleted and the second post's link was in the comments of the first)

I'm pretty sure that it has been discussed a lot, with many examples, do you have other links and examples ?

Has anybody made or is interested in making the experiment (like posting at different times two situations that are exactly the same except the genders are swapped) ?