If I understand correctly, the paymaster just enables gas to be paid by exchanging ANT for ETH (without the ANT holder possessing any ETH prior to exchange). So instead of lowering the cost to upload, when a user has the paymaster perform currency exchange, there is now an additional operation which slightly increases the total gas cost to store data on the network.
Don’t get me wrong, I think it’s a good step forward to help more users to transact.
But I wonder: are “receipts” something that the team still plans to implement?
Are receipts are intended to be built on an autonomi-native token? Or work something like Lightning (off-chain) payments to decrease the quantity of transactions Arbitrum processes (significantly lowering the gas paid for data storage transactions to node operators)?: