You can report tweets to have them removed. Pretty sure Chad Pukes has done that.
But does there have to be justification for the removal? My Tweet contained nothing abusive or offensive, it was along the lines of "are you aware that the game started at 6:05?". Probably Twitter has too many users to perform any sort of analysis of the contents, if someone complains, the Tweet gets deleted. The more I think about it I'm guessing that the NatMobile crew wanted to get paid for their trip to Verizon Center last night even though only the homeless were hanging outside the stadium by the time they showed up.