Having foolishly strayed onto one blog because it was listed on the V&A site, I found nothing but nastiness and bitching, elitist smart remarks and put downs. This is not a surprise because the blog in question has rules. A long list of what you should discuss and the suggestion that if you get it wrong you lack the superior intellect to be part of the circle.
The second is also popular but more so, but comes over as so incredibly elitist that today potential comment leavers are threatened not to leave any about a certain much discussed subject. They really so remind me of the characters in Inspector Morse, who lived in the ivory towers of Oxfords elite and never stopped thinking that they were above Oxford's common hoard. Morse hated them and I know how he feels