[jancsika]

> probably because brave upcoming ad network will do the same but more workaroundily

AFAICT Brave's plan is to send a block of potential ads to the client and use a client-side machine learning algorithm to choose specific ads. So the claim is that none of client events, inferences from the algo, nor ad choices travel from the client to the ad networks. (But ad networks retain their crazy microtargetting which I guess is the selling point.)

Even if Brave were to choose the blocks of ads based on geolocation and other install-time/runtime data which they then sell to third parties, it's still significantly less data leaking from the client's browser compared to, say, a default Chrome install. But them storing/selling that would be a clear GDPR violation as well as going directly against all their explicit public claims so far.

What is your understanding of Brave's upcoming ad network that leads you to believe it requires a surreptitious GDPR violation?