Agree that ship and iterate is a good strategy to quickly build on the enthusiasm for assets.
Basically it would be a good idea to emphasize the experimental nature of ZSAs so we have the flexibility to iterate on the fee policy without creating some expectation that they’re fixed and final
Disagree with this subpoint tho, which isn’t necessary for the bigger picture we agree on:
This doesn’t have to be the case. For example you could charge a value-dependent fee at the time of shield-minting (minting a ZSA after depositing some existing non-shielded backing asset), or at the time of withdrawing (redeeming a ZSA note to withdraw the non-shielded backing asset). It wouldn’t affect privacy because it’s only computed at the time of deposit/withdraw, which already publicly disclose the value of the backing asset