[aragilar]

You can't have "privacy-preserving advertising". Either you track users to ensure ads get displayed (because the places you'd serve the ads wouldn't serve them if they could/claim more ad views than happened), or you have no clients (because their ads aren't displayed). Broadcast works for ads because the clients can verify that you are broadcasting (and it means you can disconnect the group serving the ads from those who verify "views").

[mmooss]

> You can't have "privacy-preserving advertising".

If you would look at their work and talk about it, it might be valid. This is just someone's hot take they posted on the Internet.

[thoroughburro]

Maybe you missed the part after that statement, where they presented an actual argument. Yours is the hot take.