Statistically speaking it would be flawed to use this to compare and prioritize a list of urls in order to rank them by interestingness/attention/etc. The reas

Statistically speaking it would be flawed to use this to compare and prioritize a list of urls in order to rank them by interestingness/attention/etc. The reason is that pages that have Facebook like buttons embedded on them are statistically speaking going to have a higher chance of getting shared than those that don't (such as Hacker News - which doesn't have such buttons). I guess it depends what you might use this for, but to me it seems to only have limited value.