Doesn't Twitter do the same thing? When you sign up for an account these days if you don't hand over your phone number in sign up it claims your account is a sp

Doesn't Twitter do the same thing? When you sign up for an account these days if you don't hand over your phone number in sign up it claims your account is a spam account within an hour even if you haven't posted yet. Always presumed it was a basic way to collate alt-accounts to real people in the back end.