Until I read to the third paragraph of the snippet, I was thinking "this is just another polling website", but the innovation that is proposed could result in some interesting results.
After reading the snippet, I was excited to go visit the site, expecting some thoughtful discussion on current affairs and politics. I was pretty disappointed with the activity on the site.
I understand that currently the site consists of the core functionality, but you should make that clear. If I was just a standard visitor I would have no incentive to come back in a few months when the app actually has some meaning.
A final note: when I vote in elections, my vote is anonymous and private. On hyperarchy I can see who voted on a topic, in 'real life' this information is not available and I believe that many people would not want it to be known what they are voting on.