Imagine the utility of making many dust utxos spendable again! I think an altruistic mining pool should emerge (maybe call it VacuumPool or SweepPool) that only includes small feerate txns.

Would be a nice gesture to help reduce the size of the UTXO set for all nodes.

We already have pools that enforce OFAC sanctions "for the greater good" so it isn't that much of a leap to suggest taking a pay-cut to make the BTC you want to see in the world.

Or maybe regular pools switch their template to target low fees for a fay. Make it a holiday