I don't know how you can trash Mahinmi for signing with Dallas. It's beyond ridiculous.
Mahinmi has been in the league for 3 years and has failed to have some kind of impact. He was playing for a team (Spurs), that is considered to have one of the best staff in the league and this team decided that he wasn't worth being re-signed.
Do you honestly believe that the 29 other NBA teams were ringing at Ian's door on July 1st and Ian decided to sign with Mavs just to screw Spurs?
Truth is that Ian has still one foot out the NBA. I guess few teams have talked to him and some of them should only have offered a non-guaranteed contract. Ian went with the best opportunity he had and it was Dallas.
Oh yeah, Ian should have renounced at his last shot at making it in the NBA just because it was with Dallas, a rival of Spurs. After all, it's just his whole career that is in play and pleasing some Spurs fans is way more important.
Unreal...