Earlier quoted context omitted.
It’s not the $1, it’s the identity linked to the charge. So now they can be blocked as well as traced back to the funding account. I once was in a charity sponsored therapy group and they had a $10 fee. I was annoyed as this was a pretty wealthy organization and the fee seemed discriminatory, or at least a hassle. I learned that it was just there to validate each participant. So I think this is just a filter to help…
If X or Twitter or whatever accept payments via Apple Pay or Google Pay then there is absolutely no way to track anything. It's those services simply dont provide any information back to ex-Twitter. Also there is number of services like privacy.com that allow to hide real card details. And even if person is using real card then payment process have absolutely no way of knowing anything except those few last numbers o…
This is just plain wrong.
1. Payment processors know everything because they process the payment
2. Application developers don't know anything besides the last 4 is closer to reality because they're probably not PCI compliant to access the remaining information. BUT some processors such as Adyen will try to provide a unique identifier for each card (that has no further information except linking multiple purchases across vendors and channels).
Now with this unique identifier X still wouldn't know WHO you are but they could provide that information to advertisers that might know or at least use it to track you online and in person