I don't look at anonymous reviews (anonymous meaning any one I don't know and/or whose tastes I'm not familiar with) anywhere. It's much more useful to limit myself to the reviews from people I KNOW a) like the things like, b) hate the things I hate, c) like the things I hate, d) hate the things I like. I get those kinds of reviews by getting to know and eventually "friending" people on the internet (or in meatspace). Places like here and Goodreads. Rando book reviews are not something I waste any time on.
If Jon, here, hates something for instance, I know I should seriously give it a shot sometime.