Dust Expiry: Clean the UTXO set from spam

The discussion revolves around the implementation of a system that could potentially enhance transaction processes by making them reorganization (reorg) safe. This concept primarily focuses on utilizing "txid:vout" for unconfirmed transactions, which would allow for clear referencing. The suggestion posits that by applying this method to every transaction, it would be possible to rigorously test for edge cases and determine the system's resilience against reorganizations. This approach aims at streamlining transaction handling by referring to indexes, thereby simplifying the identification and tracking of transactions. The underlying objective is to ensure that the system can withstand reorgs, thereby maintaining consistency and reliability in transaction records.