Personal blogs mostly, I haven't seen a for profit non-tiny organization ever not turn into a content farm when it got down to either firing people or turning on the crap firehose.
Reddit and HN are great for scanning for new bloggers to follow (hence the number of posts in these places pissed about the Google Reader shutdown).
True, although Reddit's programming subreddit been degrading in value. I have been trying since a year to revive it by posting regularly, mostly from Hacker News. I have earned Karma but the subreddit overall is on a downhill journey.
In my experience they all are, it's pretty much built in to the model (not just Reddit). If content is determined by voting and the community grows then you get regression to the mean. And "the mean" type of content is probably why the early adopters moved to something else in the first place.
