I joined Reddit programming after I joined Hacker News. I keep hearing these bad things about Reddit but actually I find links and discussions interesting there. Sometimes more interesting than here because people are more relaxed. Yes, there are those obvious jokes and even purposely made accounts to post specific kind of useless comments but I just sniff and keep scanning the rest of them. In reddit it feels more like discussing with colleagues than with professors. I'm not saying HN is worse, on the contrary - both are important. Often I would read both - HN's and reddit's opinions on the same article.