I understand the philosophy of keeping URLs active, but this is taking it to a new extreme. How about changing URLs every... 5 years or something ridiculous. I

I understand the philosophy of keeping URLs active, but this is taking it to a new extreme. How about changing URLs every... 5 years or something ridiculous. I mean, they allow me to delete my account and that would kill URLs, so if it's between deletion or changing, what is the difference?