[jsrozner]

i mean that the business models of google and facebook would go poooof

[rightbyte]

Sadly not. Context based ads is a thing.

[amelius]

Context based ads also give away information about the user. Because if you buy the goods that were advertised the vendor knows which contexts apply to you. It is not very precise information and it may involve probabilities, but it is still information.

[fasbiner]

That's a vey reductionist position.