Is there proof of this in a post?
There was, the post was deleted.
It was written by Primemuscle as a “cutesy” post about how Primemuscle “had” to sneak out of the house and go meet anonymous men for sex to satisfy his urges. He bragged about his need for gay sex and some other lurid gloryhole details. He was bragging about how he always did whatever he wanted to do, even though his wife was bedridden with cancer and dying.
Obviously the responses from Getbig did not go well, I think Pellius led the charge amongst others. The post was edited, then deleted, but he has posted milder versions of the same thing before and after.
There is a good reason he is treated with abject disdain here for reasons other than politics.