Hate the name, but like the idea. Ties in with some stuff I'm working on myself. Get in touch if you want (oh and update your profile.. maybe an idea for your site - verified logins count more?)
You need to let the site fail gracefully if JavaScript isn't enabled.<p>You can't even view the about-page without JS.<p>From your description it isn't clear what will happen if you run out of votes. Do they regenerate over time?<p>What's keeping the top-voted from keeping all his votes to him self and ruining the "economy" that way?
I like the concept. I would have to agree with the other commenter who mentioned that finding a designer would be a good idea. I was also unable to read parts of the site.<p>The thing about the name 'mushpot' is that I'm not going to forget what your site is called any time soon.
You need to find a designer. Also, what does this do that Reddit doesn't? I'm not suggesting that your site lacks innovation, but you certainly don't make it clear what this does differently.
stop focusing the login text box on pages with content.<p>it's fine if you're on a dedicated login or search page, but for other pages it's very annoying.