[uncommonsense]

This technology has been around for several years. It's typically used to track customer sentiment (e.g. what are customers saying about our recent product launch), or sentiment for competitors. See http://www.ngenera.com/insight/on_demand_applications/collaboration.aspx

It's only a matter of time where it's used for political purposes - suppress dissent...?

[worst-case scenario]

I agree - this is a sword that can cut any way the wielder chooses. It’s part of the reason that Net privacy and tracking issues are so important. Makes you wonder about the uses any large organization can put this technology - credit bureaus for instance.

I’d never heard of this site before this post. How popular and well-known is it? Its impact will only be as great as the number of “eyeballs” it can verify coming to it. Remember that every click we give it drives up its ability to sell ads, and keeps it going.
Orwell’s Big Brother has a place - it’s about 1/2 inch wide, on my bookshelf. Or perhaps in the imagination, of things to avoid.