[fookyong]

On Hubski, user follow one another, rather than communities, as they do on Reddit. Instead of voting a post up and down, you simply share it. That propagates it to your readers; the more people share it, the hotter that post becomes.

sounds like he has created Twitter.

[kissickas]

That's not fair. It has comment pages for each post (?) with proper comment threads- better than Google+ and facebook in that regard.

Edit: And, of course, twitter, the one without comments, comment sections, comment pages...

[akkartik]

But with threading, and without artificial length constraints.

[Raphael]

An HN-Twitter mashup? Sign me up!

[BruceLi]

Not Twitter, maybe Sina Weibo, hahaha