User id change redirection may make it impossible to access users
If user A change id from @a to @aa, nitter.net/a will redirect to nitter.net/aa.
But if another person takes user id @a, it will still redirect to @aa, making it impossible to access (the new) @a

example: [@whitehouse](https://nitter.net/whitehouse) [@whitehouse45](https://nitter.net/whitehouse45)