See this is why it's so hard for men to come forward, as they get laughed at and out of the police station, "as a woman can't possibly hurt a man".
I have seen it happen it's exactly the same belittle them to the point they have no fight left and just lash out and they do nothing back. Be it verbal or physical or emotional humiliation.
Just because it's less prevelant does not make it less of an issue.
If a man were to make threads on forums about his wife, saying how he'd like to kick her head in and rip her tits off, "joke" or not, would be horrific and if someone posted that in relationships, they'd be told to leave. Just because it's the other way does not make it right, it's 100% just as bad, just as disgusting and just as disrespectful and harmful to a relationship, "joke" or not.
Bea you post highlights very well the distasteful double standards at play here on MN, and the rasons why female on male abuse is rarely acknowledged as something more than being a minor joke.
Decent women do not talk about their OH's like that IMVHO.