Back in '99 when I was stuck with a problem and knew I wasn't going to figure it out before the project had to be completed, I ventured over to devshed. It soon became my favorite resource. Then I found perlmonks a year or two later and have only been back to devshed once in a while.
The thing that keeps me at perlmonks is that I usually get correct answers whereas devshed usually sends me off on a wild goose chase. That is the only major difference I see between the two.
The forum software seems basically the same to me. Although I think an expert user will find that PM will allow you to do more. You can use HTML in your posts, and create your own CSS for the entire site. Home nodes are much more flexiable.
From all of your replies, it sounds like to me you're looking for newest nodes. PerlMonks FAQ, and What shortcuts can I use for linking to other information?.
The only flaw with PM is the existance of the experience point system, which lacks accountability. However in this case it seems to have worked since I found almost all of your nodes in Worst Nodes, exactly where they belongs.