[nadams]

> Though IMO the author should just be explicit about what he wants; playing mind games with people is never a good idea, and it just self-selects for people who have used GitHub professionally.

I was thinking this exactly. Perhaps the interviewee should have asked what format - but I would argue just be professional and don't try to trip them or play mind games. Put your expectations up front in simple writing (just say "submit in github gist").

There are so many formats and mediums - if you allow the interviewee to guess what you are expecting they will most likely guess wrong.