Add any quest that will automatically activated after collect of the first medallion from bounty, something like: Collect (x) amount of medallions to buy keys for unlocking new zones, and track way to vendor on traven isles, because many of new players have no idea what to do with them and they keep asking for it daily
So, the first medallion drop opens a quest to locate the medallion vendor. The first click on the vendor brings up a quest dialog that explains the medallion system and completes the quest. Yes?
Toss in a bounty hunter badge as a quest reward and it's perfect.
That's a good suggestion that would save a lot of new players from a bit of confusion.