I don't think its really a problem for advertisers, I think it's a problem for the companies that try to extract the absolute most possible ad dollars out of advertisers, by showing the advertisement of the advertiser that is willing to pay the most in any given situation. If ad performance metrics drop across the board, ad prices will fall, and these networks will have a massive revenue drop (at least equal to the decrease in conversion efficiency.)Too f’ing bad. I am an advertiser. I don’t see the issue. We measured results before all of these ids we will figure out what works after. Use matched markets to determine what is performing.
I also have dabbled in advertising of the online variety, and the ad networks are basically vacuuming up all the margin between business costs and revenue. If revenue drops, and costs remain the same, available money for the ad networks to extort decreases.
TLDR: eventually google, Facebook et al extract all profit from every business you see advertising on the platform because of the way reverse auctions work.
**** them.