Are you a super fan? Dress up fan? Message Board owner/poster. Tailgater extraordinaire? Blogger type person? Have insomnia and like to read longish things?
I put this here instead of at NBA because really the issues have more to do with being a big sports fan and not NBA things.
This is a legal discussion I put together with a buddy of mine about the Clipper Darrell situation. Basically, the Clippers took issue with him doing interviews without consulting them and making appearances as Clipper Darrell. They didn't want him to use the Clipper name in his commercial endeavors. He was crushed by this and wrote a blog post. Then they put the hammer down and said he didn't conduct himself in an honorable way and that he wasn't an actual fan. Very scathing stuff.
Most teams want to encourage their fans to become evangelicals of their brand. The Clippers denied credentials to B/R to do video on Clipper Darrell because they saw no benefit to the team.
Here's the link.
Clipper Darrell and The Legal Issues of Super Fandom
The short version is be a super fan, but be careful about being perceived as monetizing your fandom. Hard to draw lines with this stuff. Oh, and don't root for the Clippers because their owner is gross. (DO NOT READ THIS