With the goal and incentive of an ever growing anonymity set, the DAO could put some of this money to work. The most risk free would be to provide AMM liquidity with token pairs that TORNADO owns, like DAI/ETH, USDC/ETH via AMMs.
The returns can be used by the DAO to buy back TORN. This way TORN will deflate and have real value.
For the most part, withdrawing staked liquidity to a shrinking anonymity pool shall be automatable.
In the worst case of a money-run, the original balances could be restored manually. In a total emergency the DAO treasury would have to come up for a missing amount.