I dont know all the rules of player conduct for the NBA, but the punishment will have to reflect something enforceable.
It dosent matter how Silver FEELS about it. He needs to enforce the bylaws and correct the image of the NBA within the laws and rules agreed upon. Sure theres lattitue within that as his previous punishment was laughable. The min will be double that if I had to guess, maybe they go a little harder since it will be at the beginning of next season. He'll have time to come back to entertain us in the race to the playoffs. So 20 to 30 is my guess.
The media always talks about what a privilege it is to play in the NBA. Maybe one of those other 4,000 dudes with a better head should be allowed to step up.