It also doesn't help when companies try things that can produce relevant ads for a user without tracking the users themselves, and they get blocked at every tur

It also doesn't help when companies try things that can produce relevant ads for a user without tracking the users themselves, and they get blocked at every turn. For example, Twitter allows you to prune a list of ad subjects. You can add and subtract to that list. This could effectively reduce the need for tracking, but people reflexively block the ad accounts, rendering any form of ad campaign ineffective. I'm not saying that's the answer, btw. It may be, or it may not be. I am saying though, that people are so used to blocking ads and not paying, that finding solutions to keep online companies viable is extraordinarily difficult without tracking. If Twitter turned around and told everyone who did that, that they have to pay for a subscription, they'd quickly go out of business.