If the coaches thought it was a problem I'm sure they'd rein it in. By all accounts Dastrup is one of the hardest working and most enthusiastic players. It's probably also a tough season for him riding the pine. I think it'd be stupid and unnecessary to tell someone who's already having a frustrating season that he has to stop doing something so harmless. It seems that you're so focused on 'discipline' that you think you should be able tell others people to stop some totally harmless behavior.