Doubt it. You can't use those methods to identify users if the phones are just being used to mine new accounts. I'd assume the miners just wipe a phone clean,

Doubt it. You can't use those methods to identify users if the phones are just being used to mine new accounts. I'd assume the miners just wipe a phone clean, reinstall Uber & create a new account. There are no special settings & variability in installed apps in that case.