I don't think I'm as addicted to HN. I use to be pretty bad with facebook and ...oh god..sigh..myspace..but I think there was a point sometime in 2009 where I just felt my use had to be curtailed. Reddit naturally replaced facebook and I was pretty addicted to that as well. Reddit was probably the most difficult to curtail mainly because as I was earning my phd I belonged to some subs on the specific topics I was studying and found the stuff being posted to be relative to what I was studying. Post-PhD and what not, I use a new account there and don't really post much. I prefer to check in later in the day along with HN to catch some of the interesting reads and read up on the responses in the comments. But usually that's only after I've taken my lunesta and am winding down for bed.