Not trying to downgrade anyone, but the comment game in the galleries is more of a social thing than a critical artistic tool.

There are groups of people that regular comment each others artwork, many times including personal messages that have nothing to do with the image posted. 

This is a nice thing, I feel it is good to have friends.  I am not antisocial, but I post to the gallery for other reasons than comments.  Which is good because I get very few anyway.

Again, IMHO, comments have little to do with the quality of the work or talent of the artists.