I have two styles for my user accounts:
Accounts under the Peilonrayz pseudonym.
Same username and picture, similar about me.
Accounts that have been anonymized.
Random name and picture, and no about me or other settings.
Due to getting a couple of yearling badges I looked at an anonymized account and found that Stack Exchange has copied one of my 'about me' sections to every account I own.
This is causing some of my profiles to expose PII.
This seems to have affected me only after We’re Rewarding the Question Askers affected my account. Or it's just an unhappy coincidence.