Pinboard has been huge for me...I almost never use the HN saved feature...not because it's bad, but because it's not good at what it does...I upvote a lot of things, sometimes things I don't plan on ever revisiting but that I think are worth praise (Show HN projects)...So it's not the saving, it's the lack of filtering.

Pinboard does some sort of Bayesian analysis to automatically tag things I bookmark, but I still add tags manually. I also take a few seconds to copy and paste the first paragraph of the article. And when I need to look up articles on Ruby, algorithms, databases, etc...I just rely on my Pinboard tags

(My public tags are here...looks like I have 800+, which is not too bad for a few years)