Earlier quoted context omitted.
What about signatures? Surely the signature has the match the one on file or the cheque bounces?
They definitely don't check the signature. About a year ago, I altered the way I sign cheques. I used to sign my full name, now I just initials them. I got not problem, no cheque bounced.
The ATM then tried to return the check to me, but there was some kind of paper feed error and I never saw it again.