AL's Report Card
The blog post is pretty well written indeed. However, the blog's PR is only 5 although the main domain is 8. Also, the links are "nofollow" so i am not sure how much link juice can you can get out of it. Lastly, it will help if you can make the URL SEO friendly since it is a Wordpress MU.
I just double checked all our links, and everything is dofollow. Not sure what tool you are using to check, because it's obviously broken.
For the URL, the uni generates a random 5-8 letter word for each blog which is placed in the URL. That is out of my control.