Dudley Henriques writes:

I'm curious about something. Do idiots like you actually believe that
people who ignore these Usenet "challenges" people like you put out
here supposedly to embarrass them are proving to the world that they
don't know the answers to your questions?
Seriously.......I've always wondered how your minds work? You actually
believe that if you throw out some "gauntlet" and it's refused, that
this constitutes irrefutable proof on two levels...the first being
that YOU know the answer, and secondly that the person refusing to
answer the question does NOT?

It happens to me regularly. People assume that if you don't answer, you don't
have the answer. Keep that in mind the next time someone asks me a question.