Earlier quoted context omitted.
Yes Early Digg was pretty good. Early Reddit had a lot of good help guides and interesting perspectives. Now on HN. And crossing fingers. (Slashdot seemed to go through the cycle, bottom out, and is ok again?)
Most niche subreddits are still good. Just avoid big/default subs and anything related to politics and culture wars. That's what disappointed me when I tried reddit alternatives. Politics and culture wars were there too, but niche subs were nowhere to be found. They don't seem to understand what made reddit worse in the first place. So I went back to reddit.
Saying that because I noticed this effect as a young festival goer. As the size of the event grew, the number of people I'd much rather not be around also increased. I am suspecting something similar is also at play here, in addition to the bot-effect...