Would you recommend any sub-reddits? Particularly non-tech ones (because HN covers tech pretty well I believe unless it's a niche).
If you like photography, you might enjoy /r/videography and /r/Filmmakers/ and /r/cinematography/ and /r/art.
Of the general interest the cool ones are:
/r/woahdude/top/
/r/interestingasfuck/top/
I like to check out r/homebrewing r/programmerhumor r/jailbreak
Stick to the smaller (yet somewhat active) subs, and you'll find much more quality content and discussions.
Just make sure you have an hour or so to waste.
* The signal-to-noise ratio is too low. There are many clever or useless comments that add no value for every one that is worth reading.
* When I read topics I know about, I find the information amateurish or often just wrong. People say things they have no idea about and get voted up, consistently. It seems to be an information bubble of the ignorant, to an extent. Because of that I find little value on topics I already know about, and I don't trust the others. (That may sound harsh but it's my experience, not an exaggeration.)
However, I seldom read it and I know Reddit is vast; I'd be very interested in any sub-Reddits that don't have those problems.