I should have clarified, by saying the individual sites have low merit, despite serving an important function. But, this is just a personal opinion; After reading several of their reviews that were anecdotally driven, influenced by hype, and just logorrheic. It's also difficult to be aware of the bias in a publication with several writers.
Pitchfork today, which still wields that same influence, is different from that of even 5 years ago, or when I last read it. Looking at the reviews from today, they are actually pretty restrained and informative.