Fees are generated from swaps. There will be BTC-ETH swaps as well, its not just Hive swaps, theres a market fit for this. Its not just serving Hive with another pool.
The BTC-ETH swaps will generate fees that are sold for HBD and given to Lps and collateral providers. Essentially the more volume we do the more demand for HBD there is. Hive assets are used always.
The more liquidity in pools, the more HBD is locked, the more Hive collateral is needed.
Its a humongous benefit for Hive. A whole new use case that creates a clear demand driver for Hive assets on a continual basis.