That's exactly what I've heard from quite a few of my clients that are members here...The review board culture is dying. Still good when it comes of advertising but from what I gather from my clients, they think most of the guys here are lounge lizard that are falling into misogyny, racism and they don't like the way they talk about the providers here. Not my words but I agree a bit. I see gents over 35 BTW. So maybe as they get older it becomes a little bit tedious?
Also the amount of people having multiple accounts and burning accounts talking to themselves in reviews are insane. So are reviews really valuable now? That's another question.
They don't post or review because of the reasons you mentioned.
It's a shame because good reviews are great advertising, but I completely understand their reasoning.