Good questions, RHF, but I think you answered them all. G

The thing about the @ sign, there was no option for that special character. And
it does look kind of like an A inside a C.

I do think WWW should have a more convenient form. I suppose when it was sent
in a certain context, a single W would be understood. Maybe a W3... Unless
one's call sign begins with that. G

Bill, K5BY