Thirty five years ago I started working for a company that made label printers and one of the common technical issues I had to deal with was pound signs not printing. It's quite funny that we still have the same issues after all that time.
Otoh twenty-seven years ago I spent a lot of time messing around with termcap and/or terminfo on various customer sites trying to get their terminals to display something other than gibberish. That's no longer really a thing, thank god, although I wryly note that there is, inevitably, a relevant O'Reilly book that I would have sold my grandmother for had I known about it.
