Credit card address verification comes down to a risk/reward calculation. You don't have to verify the address. At some processors, doing AVS (address verification service) to some degree is worth ~1% off interchange, due to the implicit reduced fraud risk. Address verification is a fiddly beast, and returns one of about ~15 codes rather than the binary you might naively expect. (It covers cases like "Street address matched but 5 digit zip did not" or "Foreign card; we're clueless".)
It also gets used in merchant risk processing, separately from risk regarding the payment itself. Some bitcoiners are of the opinion that bitcoin means the end of risk from the merchant side of the equation. This is, broadly speaking, not true. There are plenty of transactions where "X happened but at least we got paid the agreed amount" is a failure condition.
It also gets used in merchant risk processing, separately from risk regarding the payment itself. Some bitcoiners are of the opinion that bitcoin means the end of risk from the merchant side of the equation. This is, broadly speaking, not true. There are plenty of transactions where "X happened but at least we got paid the agreed amount" is a failure condition.