Bon Appetit posted a pretty good article about citizen criticism which focuses solely on what the paid critics think about the medium. Overall, I’d say more critics are displeased or off-putting than embracing, and many fail to cite any solid reasons for their distaste.
Our opinion (since we heard you ask): it’s just one more avenue from which to make dining decisions. We’re guessing if 20 out of 21 solid reviews all have nothing positive to say about a restaurant’s food it might be worth listening. On the other hand, if the citizen critic seems to be preoccupied with the beautiful crowd or the time waiting to use the WC we’re not so sure this someone we’d listen to.
Heck, half the battle is making sure you’re getting food that didn’t fall of a SysCo truck the previous week.