Looks legitimate to me. Most (if not all) crafting classes have high-level levequests where you turn an item (or multiple items) in at an NPC in that camp in your screenshot. To me, it looks like that person was nearly leveled-up in all three of those crafting classes and they had a leve to turn in for each class at that NPC. After each turn-in, that respective class hit the exp needed to get the level.