As the developer of the GridView app, I would like to thank you for witting about my app!
Brandon, that's a good idea, however defining "interacted most with" is very hard. Even Facebook itself doesn't try that. A random assortment of friends would not work, because GridView has to be manually updated.
But thanks for using GridView. Also I'm working on some improvements to GridView to "break the Grid". Stay tuned and thanks for using GridView!
This happened to me too. I run GridView an app with ~30,000 users and I was responding to support messages sent to me by using a form letter. After sending 7 they warned me not to do it. Then after 3 more, they disabled my account. I had to write to disabled@facebook.com and tell them I was only responding to messages from my users. I had to wait like 24 hours before someone responded and fixed my account back to normal. It that time I lost my profile pic while my account was disabled (witnessed on a friend's account)