@Lurkykiller:
One of my green colleagues wrote on this some time ago:
For me personally… The old forums are gone to the winds of the past, but I got my green colour during the Original Connected Realms programme many years ago. On a very basic level, I tried to help people in questions relating to populations, activity of factions and realms and made some suggestions and educated guesses on what Blizzard could and perhaps should do. Eventually, someone (I do not know who, probably more than one person) recommended me and Blizzard contacted me asking whether I would be interested in joining the MVP programme.