Originally Posted by GoodBox

I may be wrong in this, but couldn't we fix this problem by implementing some sort of harsh rate of elo decay that is inversely proportional to the number of mods the player is active in? (I'm focusing on the ambassador concept here, but elo decay should be for mod specific elo too). Global elo could also weighted relative to how active a player is in a mod if it isn't already, so they can "dip" into new mods with little loss.

I think this is what William meant when he said that rank should be based off activity.