Yield Farmers are attracted by yCurve's extremely high APY. They definitely want the whole set of benefits. So what will they do?
They cast yCurve and deposited it in the farm YFI. Later, they discovered that the deposits in the Balancer pool could breed more YFI. They want to join, but most people don’t have any YFI yet.
Pool tokens are minted when liquidity is deposited in the system, and can be destroyed at any time to withdraw a certain percentage of reserves.