During a Drupal.org redesign sprint at one of the recent cons, there was a discussion at about the branding of other Drupal properties, e.g. Drupal Association, Groups, API, etc.
Specifically, we discussed if the theme for the Association site would use the standard wordmark, or if we would create property specific wordmarks so users have a better idea of where they are. I'm pretty sure this discussion was abandoned in the interest of time and just proceed with using the same header/logo as the Drupal.org theme.
Another reason for doing this would be to give a facelift to the outdated Drupal Association member badges.
Overall, I've been pretty disappointed at the slow adoption of our new wordmark. In an order to combat this, I've create a page which allows users to download the logo while providing them with the proper usage guidelines -- drupal.org/drupal-media-kit.
I've got a few ideas that I can follow up with anybody that will listen, but I just wanted to get the conversation started.