The cynicism and optimism seems to have stayed more or less constant. The quality of conversation is the problem.
Luckily, quality tends to bubble to the top, barring manual intervention that occasionally makes a few (few) mistakes. So far.
The extremes are true: I've increasingly felt that people here are disconnected from reality in a way not seen in previous years. I'm not quite sure how to put it into words, and it deserves a substantive eloquence beyond my capabilities at the moment.