Very true! Thanks for gently pointing out that hole in my logic. The leap from correlation to causation is a very big one. Anyhow, like you, until I see some

Very true! Thanks for gently pointing out that hole in my logic. The leap from correlation to causation is a very big one. Anyhow, like you, until I see something other than restaurateurs complaining, I'll give Yelp the benefit of the doubt here.