I started regularly looking back at my comments and seeing which ones get modded up, and which ones get modded down.
(Click on your username in the upper-right of the HN page, and then click on "comments.")
This might sound insincere, but I really try to write my comments so that they won't get downvoted.
> I ended up comming to the conclusion very little value, and deciding to not submit it.
Maybe every 3-4 months I decide not to submit a comment?
Honestly, I tend to abandon comments / posts on Facebook more than I do here. Hacker News tends to be a lot more civil, with good enough moderation that flamewars get doused quickly. Thus, I don't feel the need to even start the kind of post that I will abandon.