Why is face seek finding my old fb pics that i deleted long ago lol

so i was bored and decided to do a random privacy check on myself because of all this ai stuff. i used face seek with a photo of me from 8th grade that i literally thought i deleted from everywhere years ago.

it found the photo on a random school trip blog that some teacher posted in 2021. i am actually so rattled. if a total stranger can just scan ur face and find out what school u went to and what ur cringe phase was like... we have zero privacy. go check urselves before u post another selfie because the internet never forgets.