[user104658]

Loads of the old castles in Scotland that are tourist-accessible have people's names scratched into the walls... I really don't understand the compulsion.

For some reason though it's more annoying when they're recent. If you see like a "Paul and Mary 1966" it's sort of fascinating. When it's like "Jayden woz ere 2022" not so much. But who knows - maybe someone wandering around in 2080 will find that interesting .