GIP-43: "Reevaluate LP and Backer Rewards"

At the current rate of emissions, the GFI rewards for LPs (the StakingRewards contract) will run out at the end of June 2023 and Backer Rewards will run out in mid-April 2023. Those dates are significantly sooner than had originally been anticipated. Also, given the low liquidity environment, which prevents people from easily exiting the position after those dates, we are proposing a way to gracefully extend the rewards, and split the remaining tokens between Backers and LPs.

To that end, we present two options below on how to achieve these goals, using principles of relative risk and liquidity to guide the proposal.

Option 1: No change to the StakingRewards or Backer Rewards

Option 2: Split remaining rewards 60/40 between Backers and LPs.