This is a good idea for payments in general.Random thought.. perhaps just change the treasury payouts to time locked transactions e.g. Proposal Owners can't spend / move their earnings until, say, 6 months into the future. That POs come to appreciate it's not easy come and easy go.
Time-locked instruments are used extensively in proper economic systems.
Optional time-locking for superblock payments, masternode collateral, or even mining block rewards (beyond 100 blocks) should all be explored more, but doing that is a matter of priorities and man power.