God knows what they'll use it for in the future, they'll know everything about you, who you voted for 15 years ago, what joke you make 20 years ago against the now-in-charge cast, do you sympathise with communist ideas ? Did you like or hate Musk before he becomes a dictator of the now independent Republic of Texas ? Did you use grinder ? Well too bad, homosexuality is now punishable by death retroactively. Looks like you illegally contacted a doctor for an abortion in 2027, that'll be 6 months of jail and a 30k fine ;)

You don't see the problem because you live in an abnormally quiet and abnormally peaceful (for you) time. The thing is your data is forever, the state of peace not so much