I can't tell how the data is collected. Hell, I would have expected as a visitor to the site: a) explanation where the rating comes from b) be able to rate st

I can't tell how the data is collected. Hell, I would have expected as a visitor to the site: a) explanation where the rating comes from b) be able to rate stuff myself. But there you have it. But maybe I'm just too used to the way the AppStore lets users rate + review apps.