Facebook takes up to 90 days to purge my information from their systems (if ever, I am quite sure a ghost account will always remain and it will be a strong one

Facebook takes up to 90 days to purge my information from their systems (if ever, I am quite sure a ghost account will always remain and it will be a strong one as well since they've collected so much information on me throughout the years). They have my email address, they could just email everyone whose data was shared.