The signature is worthless. I have known this all my life. It was again confirmed Thursday. A check went out to my vendor that was unsigned. They called me Thu and said it was unsigned but they deposited it anyway. I called my bank to get them to note it for clearing. The bank V.P. said "no need, our computers don't process the signature line anyway.My comment was that banks require businesses (and I assume non-profits, like churches) to have a signature card on file at the bank showing the authorized people that can sign checks. I didn't say anything about whether or not people look at signatures on checks.
I will now let you have the last word in this thread, since you seem intent on getting there.