See https://noyb.eu/en/irish-dpc-greenlights-facebooks-gdpr-bypass https://noyb.eu/en/irish-dpc-greenlights-facebooks-gdpr-bypa... (https://news.ycombinator.com/item?id=28857461 https://news.ycombinator.com/item?id=28857461) for the initial post about this.