Using Bitcoin for other than monetary purpose is not abuse if you are willing to pay the price. (may it be either in fees or in dust)
You can't abuse Bitcoin anyway. Some tried, did not worked so much.
Ah, this reminds me of a girl at the university who came from a very wealthy family and thought that some rules did not apply to her. There was a reserved parking area which she did not hold a permit for, but she parked there anyway. She would pay her fines and repeat the offense. This went on for quite some time before the university was fed up and made it a point to tow the vehicles of repeate offenders.
The purpose of the reserved lot wasnt there to bring in additional revenue for the university from those who can afford to violate the rules and pay the fines. It was there to serve the needs of those who were designated to use it.
The same can be applied to Bitcoin; abusing the system because you can afford to pay the fines does not make it OK and should be discouraged.