I'm paranoid about privacy. I would like Facebook to adopt GDPR everywhere. However, I also want Facebook to continue to thrive economically. Benefits of a thriving Facebook are clear, from the open compute project to tons of open source software, and the applications (FB, Instagram, WhatsApp) themselves.

In that light, it's sufficient for me if Facebook follows the law of the land properly. In the US, they needn't adhere to GDPR, but do need to abide by their deal with the FTC. Abiding by that deal would have prevented the CA debacle.

So there - I enjoy free services, software, etc. from Facebook, but just ask that they stay ethical