If I click on a website account name next to their forum posts I get a "viewprofile.php" page that has some interesting statistics such as the number of posts. Two questions related to this. 1) Is there a list that I can use to access this page? 2) Is there a way to get an overview of accounts sorted by number of posts made?

I'm afraid these aren't currently options. The profile list thing is definitely something on the list to have done.