FeeCollector.buyAndBurn shrinks supply. STK is not collateral and is not the borrow asset.
STK lets you:
- Hold and transfer STK as a standard 18-decimal ERC-20
- Burn your own STK, or STK you are approved to spend
- Read a supply that can only go down
The source code is
src/token/STK.sol on GitHub. The ABI is /abis/STK.json.