I am saying that ads can never be relevant or useful "enough" (because they interrupt). Product discovery is now solved because of search and social recommendations. So there is no need to give up on privacy.

Perhaps. I think it's a naive point of view, though.

Search is terrible still, the other day I searched for "cheap mechanical keyboard" and the first two results were basically pure spam. Even then, only the first 5 results get any decent traffic and results on the 2nd page get almost none.

Social recommendations work only if your product is either really damn good or you play unfair and game the system. People are designed to not care about things they haven't heard of before.

There's a saying in selling that says a person needs to see your brand/product 7 times before they're ready to buy. As a new person on the capitalist market I don't see how I'd do that while playing fair and without going bankrupt in the mean time.