What should the max supply be for the Stabinol cashback token?

Stabinol is a new token created by the Stabilize team that will help offset the cost of ETH expenditures. Most of the initial token distribution will be airdropped to STBZ holders based on a snapshot at a future date.

At the start, users will be able to claim a cashback by minting new tokens based on set parameters. After the max supply is reached, the token will charge a per transaction fee from the sender that will go back to refilling the pool of tokens that can be claimed. There are no more new tokens minted.

What should the absolute maximum supply of tokens be for Stabinol?

This proposal is advisory for the team, meaning it is consultative rather than affirmative.