Re: Have you seen the credit reference parasites' answer to this?
"n other news, it's going to be fun watching the card issuing biggies deal with GDPR."
Another one I'd like to find out about is PayPal. I discovered that they send the buyer's email address to the vendor. I discovered it because one vendor discovered in no uncertain terms that I don't like being spammed. I had to go through the trouble of changing my PayPal email address.
This is stupid beyond the spam issue. The email address is also half of the login credentials. That alone is more than sufficient reason not to pass it on.
If the vendor needs, or thinks they need, an email address I'll give them one. Unless I anticipate giving them repeat business it'll be a short-lived address and even shorter lived if they spam me. And if I do anticipate repeat business the most effective way for them to forgo that is to spam in which case that email address will also be short-lived.
So far I haven't seen any request from PayPal for permission to continue doing this although, of course, it's possible that they've stopped doing it.