I think I understand what pelf81 meant...
They are basically two kind of reviews right now on the web :
1) The trashing reviews, focusing on what's wrong in the blog
2) The positive reinforcement, introducing a new blog and letting readers judge by themselves
I think Bloggeries falls into the second category... and there's nothing wrong with that !
I personally enjoy reading both kind of review. Yes, mean reviewers too - as long as they're not talking about my blog ! I know, it's bad...
I think Bloggeries introduces us to a bunch of blog, and then we are the judges.