Possible or easy?
I have no doubt that Bob was correct, what he suggested was possible.
However the woman who called seems to have asked the wrong question(s). Instead of saying "Gopher can't do that", her real issue was that she did not know that Gopher could do what she wanted.
That isn't a failure of the software wot Bob wrote. But it could easily be a failure of the accompanying documentation. Without having the specifics it is impossible to say.
And this seems to be an early example of what fuels so many "support" forums and websites now. While lots of people write software and freely give it to the community, it is clearly the case that authors provide precious little information on what it can do and how you can do it. We all know that writing software is "fun" but writing documentation is a chore and fixing bugs is an absolute PITA. As for testing? so tedious that few ever do any: to compile is to run!