Earlier this week I committed a new profile module to the development branch. I just finished upgrading drupal.org to take advantage of these new improvements. If you check your account settings (authentication required), you'll notice that I added quite a few fields that let you define your role within the Drupal community or the Drupal project.
Furthermore, updated profiles can be browsed (or filtered) using some of these new fields. For example, click here for a list of Belgian Drupal users, here for a list of female Drupal users or here for a list of documentation contributors.
(Update, March 21: I've made some more changes based on the feedback posted in the comments. The updates are outlined below. You might want to revisit your account settings.)