Quite unsurprisingly, I come from Reddit. I found out through an r/AskReddit or a r/BestOf post, I think - something about what may make Reddit quality content decline, and some people were asking about alternatives among which Hubski was mentioned.
I quite like it here. The design, the wheel system, the quality comment culture. It does feel like I don't fit in, though, but that's just my depreciating self talking. :p