Yes, I think we might be missing each other a little bit again, perhaps due to different ideas about how the auto-encryption is operating.
The correct public and private keys will always be used if the communication is going to work. Auto-PGP would still be using public and private keys for the buyer and the vendor.
The way I understand it, auto-encryption is a one-sided mechanic: It’s something that the buyer ticks on/off.
If so then it is designed to interface fine with people using manual PGP, such as vendors.
If such a system generates the proper keys for the buyer and handles encryption/decryption automatically so that everything always appears to them as plaintext on the frontend (because the system maintains their keys), then it would still be able to serve the vendor a traditional UX that requires manually handling the keys. In this case, the experience of the vendor would be identical regardless of whether the buyer is using auto-encryption or not.
This would only expose one side of the conversation to the server admins, of course: The messages sent from the vendor to the buyer (because the system only has the buyer’s private key).
I do not know if this is the way it was actually implemented. However there is discussion on Dread right now that leads me to believe that auto-encryption works somewhat similarly to what I have just described (at least from the vendor’s perspective).
edit: Looking back, I might have introduced some confusion with this line:
to identify whether a specific buyer was using their own PGP key or the auto-encryption feature
It would have been more clear for me to say:
to identify whether a specific buyer was using their own manually-generated PGP keys or using PGP keys generated for them through the auto-encryption feature.
This was a big train of thought in the early 2000s due to the SARS outbreak. I seem to recall that it was a talking point even by the end of Clinton’s presidency.
I agree it is very much like what is going on with climate change. And of course, more pandemics. We learned nothing!
Well, it’s endemic among wildlife now. Of course, we should still try to manage it among humans. But eradication might be tricky at this point.