Small distinction, but I wouldn't ban targeted advertising, but profiling instead. So a site could absolutely show you ads according to the content you view or

Small distinction, but I wouldn't ban targeted advertising, but profiling instead. So a site could absolutely show you ads according to the content you view or create, and companies can go to a site and ask them to show an ad to certain users. But it would be banned to pass on any kind of usage data that is not explicitly destined as public (profile page data, posts), and it would be forbidden for third parties to create profiles on you. I think tracking is also not bad per se, I still want to be able to identify recurring visiters to my site uniquely. It's the centralized advertising brokerage and profiling that should go away.