If you're not hanging out with a lot of Gen Z women it would explain why it's not on your radar, that's their key demo and they're on a very solid growth trajectory[1].
It's no secret, meanwhile, that twitter has seen steady declines both in daily active users as well as plummeting engagement levels from those that haven't left yet.
Is it? I haven't seen a Pinterest link in a while so I guess it depends on what bubble you're in.