[heathrow83829]

if you draw a venn diagram of all the stuff i get advertised on and all the stuff I actually buy, the two circles are in completely different locations with virtually no overlap whatsoever. the only time i get ads that are even remotely related to my purchases, are only ads that come after I've made the purchase and am done. personally, i don't see how they make any profit off me whatsoever.

[nitwit005]

As long as there's some company willing to bid the minimum amount, they'll happily serve up those ads.

I have YouTube ad personalization off, and sometimes get frequently repeating ads. I suspect when that happens, they are the only bidders.

[dylan604]

Maybe you're confusing who is meant to be making the profit. The people lying to you about receiving relevant, personalized ads are telling the same lie to those buying ads. The ad company tells both sides the lie and their profits are soaring.

[bluGill]

Those buying ads have of ways to track what works. they needed that 200 years ago already and were developing it. (Not all of course, but the big ones)