to be clear splitsywitsy, those numbers/letters are a cryptographic signature that verifies who he is.
as for why hes here, im pretty sure its because he poured a lot of sweat and tears into a project that went south and this thread is basically the epicenter for its discussion at this point.
generally speaking your take on this is the money line but in this case, its actually him and im pretty sure hes here for very basic, civil, and genuine reasons.