[dmatech]

Nobody is going to opt in to having their data used for advertising in exchange for nothing at all. It will eventually be held that it's abusive to even give people that option. So the obvious solution would be to take away the option entirely and give Europeans the option to have a paid account with no ads/tracking or to be locked out of the site. Of course, the EU could just whine about how Americans get Facebook for "free" but Europeans don't.

If the EU really wants to ban ad-supported sites, they should just come out and do it.

[sensanaty]

You can have ads, just don't intrusively track your users and harvest all their data en-masse. Ads != Tracking, as can be seen literally everywhere that isn't the internet where ads exist.