How is this better than Slashdot/Reddit/Digg/whatever if it has less users and I have to wait until someone is actually online and willing to chat about a particular topic, instead of just posting a comment and checking back later like I'd do in one of the sites I mentioned?
Also, how does it deal with spam/abuse/hate speech, etc?
And if it's a start-up, how is going to make money? (I assume ads, so where will it be getting users from?)