[criddell]

I wouldn’t assume they will no longer be able to show good ads. Ads don’t require tracking to work and there’s plenty of ad-targetable signal that Facebook users give the platform while using the service.

For example, if you join a cycling-in-Berlin group, they can still use that information to show you ads for protein bars and lederhosen.

[hedora]

But that would lower the ad brokers' profit margins!

It would allow producers of quality content to charge a premium for their ad impression inventory.

Careful, this is a slippery slope: Soon you'll be arguing some other anti-monopoly nonsense, like for open access journals, or that lederhosen manufacturers should be able to sell off Amazon at a discount.