User blog comment:DaNASCAT/Technical Update: August 16, 2011/@comment-4053809-20110817174436/@comment-957747-20110817175422

Thanks for the response Jen, but I'd like to hear the rationale of how this [blue link categories] is for the greater good. As Monchoman pointed out below as well as several of us here and in the forum thread... users don't realize anything needs to be done with these categories and therefore don't do anything with them. In my opinion, it just makes things worse by the fact that no one realizes anything needs to be done (not even the admins in charge) unless they go out of there way to find out (adding custom CSS or going to Special:WantedCategories).

This change actually wards off potential editors instead of encouraging them.