Hi I'm the OP of this thread. It's not a complaint at all, it's just awareness raising. This stuff is really obvious. Twitter is a tool used by the masses so why not use it to educate and inform.
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.