Cool idea, but I don't completely understand the interface. It's not clear what the 1-5 buttons up top are: does clicking on it record my rating of the claim?
What are the numbers next to each of the links in Pros and Cons? They look like they correspond to the ratings above, but I didn't understand how those were derived.
You're on a link that's my opinion, so the numbers next to each link are my ratings. Clicking the buttons on top saves your rating to local storage, and makes a 'You' link to your opinion, where you can put pro/con arguments with your own ratings.
Putting your ratings on the site requires a paid account. I'm making this in my spare time and would have a hard time controlling spam if such accounts are free. I still think the free version is useful for exploring your own opinions.
What are the numbers next to each of the links in Pros and Cons? They look like they correspond to the ratings above, but I didn't understand how those were derived.