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Bitcoin Sikho | 4 months ago (raw) | root | parent | reply | flag 
 All you’re doing is passing the fees on to the receiver 

Btw can’t the sender double spend if the original tx is stuck in the mempool with lower fees ?
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mleku | 4 months ago (raw) | root | parent | reply | flag 
 the receiver isn't paying any fees, that's coming out of the UTXO

yes, this is another bounce risk, that they broadcast it again with a higher fee rate

it's not an instant payment, it's a contingent payment, like a cheque
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Bitcoin Sikho | 4 months ago (raw) | root | parent | reply | flag 
 What I meant was, if the sender low balls the fee, the receiver wants to get the tx confirmed, he will pay via cpfp
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mleku | 4 months ago (raw) | root | parent | reply | flag 
 yes, this can happen, but if it wasn't worth doing you'd just spit at the bastard next time you saw them

the use case really is something like how it would work with a cheque though... the main thing is it can be conveyed offline, without intermediary risk... just counterparty... you wouldn't count the payment settled until it is in your utxo