As you may recall, my Shinkiba HOF was toward the end of an event as well. Maybe there's something about events that increases the chances of a "correctional HOF," as the miners call it.
Myself and a couple SOC m8's teamed up with Spongey during the Hydra Spawns. We got a nice global with some (L) Armor in it and even though he didn't know us from a hole in the ground... after getting the armor in his loot window he went out of his way for almost 2 weeks to track us down as we logged in one by one and give us our split. An honest Entropian he is!