Here's why I like it: its a chance for non-published writers to put their thoughts about writing up on a writing specific blog without being responsible for 100% of daily content. Basically, if you have a soapbox, you can post an essay there and stay quiet until you think of something else.
Also, since it is done by amateurs, there is some good advice by people who may be in your same shoes.
Not as cool as Hatrack, I admit... but good to bookmark for the times when you really want to procrastinate around the interwebs...