I'm saying that startups should have the right to engineer their platforms in the way that they see fit. Because of GDPR, no startup (at least those that accept EU traffic) will ever achieve the social lock-in that Instagram has. Instagram built their user base in an era where it was difficult for average users to get their pictures out. Did your startup come up with a new set of filters that make photos go really viral? Awesome! Users will just make it in your app and then export it to Instagram, where people will actually see it. You'll go bankrupt...but Instagram usage will increase as a result of your efforts.