Imagine coming onto a support group and belittling people for having a medical condition who occasionally vent because of things like appropriation or frustration at those who don't believe in or understand dysphoria. You do realise what this group is about and stands for right? Private conversations and posts get censored (if they're not they get removed), they're not commonly posted and the mod team are very active taking down posts with traction, posts that upset people or posts that break the rules. I'd say maybe check out the group for a short while before generalising or don't lurk on groups with an opinion that you don't agree with and aren't open to.