To me, the point is to take a step --- a small one, granted --- towards a culture of greater fiscal responsiblity in Washington. If we can hold our representatives on Capitol Hill accountable for the small bits of pork, then perhaps that example will also make them think twice about the larger boondoggles that plague our government.
I think the Porkbusters concept is a good one. Or as I would like to say:
Dear Congress, Your job is NOT spending our money.