Whenever someone mints, their USDC payment is sent to the address usdcReciver.
ousgInstantManager::_mint:
The issue is that usdcReceiver is immutable:
Where this address is to be blocked by Circle, minting in ousgInstantManager would stop to work and a new ousgInstantManager would have to be deployed using a new usdcReceiver. This could be confusing for users.
Consider making usdcReceiver mutable and add a way for the protocol to change it.
