The plan from GAW's perspective is that people will keep restaking, and the few that cash out will only cash out a bit at a time.  The "market maker" staker/investors, will either have to restake their earned paycoins after 6 months in order to keep their prime controller status (because they have to maintain that 1% of all paycoins status to keep the controller status)... or sell their prime controller to another interested party.  They simply can't cash out their coins.