With BK2.0 hopefully it will be easier to sort out the players with multiple IDs being used to boost ratings. However one way to make it more time consuming for cheaters like this is to increase the minimum moves for a game to be a considered a rated game. I was thinking increasing it to like 10 moves per side. As always you can always scout your opponents profile. When investigating their gameplay you can see awkward things like many games against the same opponent and it is under 5 moves and then a timeout. I noticed this in a couple of people before and alerted Fencer and he gave them the boot.