> Hn is a discovery/recommendation site as is Reddit. Amazon makes a lot of margin on theirs and arguable it's part of the major value add for Spotify and Netflix.

Nope, HN is just an online forum. I can't tailor what I see on HN to my tastes, and there's a subset of posters who get preferential treatment on the frontpage (YC companies), so nope, HN is not a recommendation site.