This is a quote from the book "On Zero Confirmation Transactions" by Chris Pacia
...ansactions containing a sequence number less than the maximum. Technically, retailers will be able to detect unconfirmed RBF transactions and reject them (making the fee bump part of it useless)
. So, at least in theory, the opt-in shouldn’t totally destroy zero confirmation transactions. But the intent is clear. The goal is to eventually eliminate the opt-in part, this patch is just
to get the foot in the door.
read full book
Once zero confirmations transactions are totally destroyed, you will only be able to transact with a retailer by using one of the quasi-centralized, thi...