...How about just not sending dust to notify losing bets?
That would reduce the SD transactions by about 25%. Will that satisfy you and solve the "problem"? Or will this discussion flare up again when SD grows by a subsequent 33% a month later?
Again it's not the volume of transactions that is the sole problem,
it's the unprunable and unspendable outputs that are sent for losing bets. They will be carried around in every copy of the block, in perpetuity, and can never be realistically spent (since it would cost more in fees than the actual amount).
How do you not see that this is a problem with the Bitcoin protocol and not SatoshiDice?? You are focusing on a symptom instead of the disease. The analogy of rearranging the deck chairs on the Titanic is relevant.
The devs need to fix the protocol issue, if there is one. I'm happy to donate funds from SD to assist the devs in this endeavor if that would be helpful.