zelivans

Unfortunately these days it is really difficult, borderline impossible to control what images of you are uploaded to the internet. This is discussed in the "Real World Limitations" section of the paper. Even assuming you have no identifying photos online, non-public photos are still analyzed by big companies like Google, Facebook, and Apple, who have access to them through their cloud services (e.g. photos you, your friends or family sync with Google Photos, Apple Cloud). Having just one image correlate to your identification details and you lose anonymity.

Any context as to why the tweet was deleted?

This. Plus, can it really be referred to as a "study" with just three test subjects?