UI sucks. Let me explain:

Hackers like plain boring lists (like HN and reddit) We do a quick scan and determine what is interesting or not in a second.

Non-hackers don't like plain boring lists, they like visuals, pics of the day, planes crashing, latest hairdos, etc.

So unless you put a couple of graphs and stats about the dow plunging, S&P in blood red, etc that site is just, booooring.