What are the ethics of sharing things you see on Hacker News on social?

What's the proper/preferred way (or is there one) of giving credit to Hacker News community when you find something interesting here and want to share it on social?

I often say things like "via Hacker News."

Are you giving credit to this site/community? Is that necessary, you think? Do you tag @newsycombinator when sharing what you saw here on Twitter?

Just had this question come to me out of blue right now. I like to give credit where it's due whenever possible. If I see a friend share something interesting on Facebook - I try to tag them if I want to share that same thing on Twitter, etc.