TLDR; This BIP proposes distributing different % of DIGG rewards to these two types of Setts based on where DIGG price is compared to BTC price.
Approval to enact peg-based emissions for DIGG and proposed initial settings for the model. See forum post for details.
Link to Discussions: https://forum.badger.finance/t/bip-22-badger-digg-emission-plan-part-ii-digg-peg-based-rewards/1787