There's an asymmetry here. We aren't talking about ads like billboard ads or TV commercials. We're talking about creepy behavioral tracking, harvesting and selling.

... and many other sins.

I go to YouTube and see a lot of things that make me question the narrative that this is an advanced system that elicits user preferences, makes markets clear, allows competitors to enter the market, etc.

The first ad I see if is for Chrome. Well I'm already using Chrome because sometimes Youtube punishes me for using Firefox. So the message is "lights are on and nobody is home", I mean, they can see the user agent and probably have deeper analysis that would indicate I'm not faking it.

Next I get a sequence of three obvious scam ads. Trying to provoke the fear of dementia in elderly people unless you use this "one weird trick" or a crypto scam or something that's obviously a scam but no way I am going to sit through 45 minutes of droning to know what the punch line is.

Then there are the saturation ads for things like car insurance that are always over-advertised because nobody wants to buy them (people wouldn't buy insurance at all if they didn't get it from their employer, or had to get it to drive a car or get a mortgage, etc.) These have internalized the form of the scam ads because they're surrounded by them.

Finally after maybe 20 ads I see something I might want and think "do I send them an email that says I'm afraid they're a scam because they're advertising in a place soaked with scams, they've incorporated so many superficial characteristics of scams and that they should reconsider their advertising spend?"

I know the numbers say Google and Facebook are making money hand over fist but on the ground my perception is that it looks like a Potemkin Village that is trying to fool investors into thinking there is a vibrant "advertising economy" when it is really a vast wasteland like daytime TV where it is all about medicare fraud and personal injury lawyers.