I don't know, I don't even feel like it's just this board. I feel like external society is changing pretty quickly, too. Things are getting much harder than they were.
I don't know if this is what you're referring to, but I feel like tensions are just rising in general. I've been feeling that for a very long time, but I think it's starting to get really tangible. People are drawing stricter lines between each other and getting more derisive about those who don't fall on their own side. There's a plethora of issues I could have brought up 5 years ago and almost anyone would shrug at them, but now almost anyone has very strong opinions on.
I felt the exact same way. In the early-mid 1990s. So I dunno if it's just a certain age that you hit and there's a loss of innocence and idealism, or if we're just cyclical as a society (cause granted, I've been comparing the batshit crazy of the last several years to the batshit crazy of the 1990s for some time) or hell, maybe it is getting worse and I'm just so jaded that I don't really feel it.
Regardless, I would be greatly saddened to see any of y'all leave. Hiatuses are to be expected, but permanent departure would make the world a little bit dimmer and colder for all of us.
I'm sure that to some extent it's cyclical. I don't think it's an age thing. I'm no less an idealist than I was at 17. I carry most of the same convictions. I'm just wiser about how and when I express them, and I know what to expect from people more often.
It's not a rise in the age of people I'm exposed to, either. I've always hung out online with people of all ages. Since becoming a working adult, I've similarly spent my time surrounded by people of all ages. People much older than me that I've known most of my life, even my own parents, who used to be mostly apolitical are now developing very strong opinions that differ greatly from the weaker ones they held in the past. I've seen people who have been best friends for over 30 years split apart by radical shifts in political belief in the last few years.
I dunno... I admit that the things that are happening now have happened all throughout history. I see people all the time going "Look at ___ happening! What is America coming to?!" and I point out to them that it's been going on for decades. On the other hand, it seems like the stakes are constantly rising. Surveillance has been a controversial issue for forever, and sophisticated spy networks have been established since the World Wars at least. Yet today's make them look childish. The Rodney King beating invoked a huge riot. Today such acts are caught on camera with regularity, and rarely do they provoke much of a response because we're so desensitized to them (and intimidated). The environment... well, I don't think I need to even say anything about that. And unrest has usually been localized in the past. Today there's a revolutionary undercurrent pretty much all over the globe, and dissent is becoming a tight-knit international community.