It's not really right to think of "reddit" as a monolithic site anymore. The default front page is garbage. The old programming reddit is fluffy with occasional good stuff, but making good comments without getting them modded to hell has become difficult because it's pretty much numerically dominated by inexperienced programmers now who don't want to hear any suggestions that they may not already know everything. The forked-off "coding" reddit (in rebellion to the crappification of the programming reddit) is pretty good in content, seems to have attained a critical mass, haven't played with the comments much. Some of the language-specific reddits are pretty good, too. Science has tanked hard ("hurr hurr religious people are teh dumb" is not actually <i>science</i>) and if anyone knows a "real-science" reddit I'd be interested to hear about it.