Not really with members specifically, but certainly with trends I see on PC. I'd advise you wear steel-capped boots while reading this because toes will be stepped on.
The main one is probably how romanticised mental illness (or really illness in general, but especially mental) is on this forum - although this is a pet peeve of mine irl, and I've given a few people a right talking to over it before. I feel like I often see people just talking about their ~deep mental issues~ at really inappropriate times or in inappropriate detail and it's like, are you trying to show off? Are you using it for attention? Do you think it's cool? To be blunt I think people fake it a lot of the time and I'm pretty good at sniffing out bullshit on this front in general, but it's just usually obvious even without having to look - if you were diagnosed with ultramegaschizobipolar disorder at the age of two months and you just so happen to live your life according to the almighty words of
Napoleon XIV, you're probably faking it. In reality there is nothing fun, glamorous, edgy or even remotely cool about it unless you are a PCer for some reason. For the sanity of people with real personal issues that they prefer to keep to themselves, please stop.
A term I'd use to describe a lot of people here is "Anti-world", which is... remarkably frustrating when so few users have really experienced that much. I'm not saying I'm particularly worldly or anything along those lines but I feel like a lot of people really don't know that much at all about what they're talking about and just kinda chat shit about things to sound educated or edgy and it's glaringly obvious that there's no real substance to much of it. For a self-proclaimed "emotionally mature" community I feel like there's a lot of closed-mindedness and unwillingness to look at things from alternative perspectives. I wish people'd be a bit more interested in things that they lack experience with rather than just forming an opinion and be dead-set on expressing it.
This kinda leads into my next point which is that I feel like there are two major mindsets here (when there should really be none): either be vanilla as anything or deliberately controversial - neither of which is exactly... great. I feel like people either don't show much personality or show a really awkward unpleasant one because "man I hate the world" or something and it doesn't make me want to be around some people here.
...all of that said, I do still really like PC - if I didn't I'd not be here - and I have focussed in pretty hard on what bothers me about it. There is more than enough here that I am happy about to offset most of this for me; but certainly these are significant points in my mind.