ArthLoan on BSC side have added Maha Troves (ability to provide Maha as collateral), along with this Redeem feature was enabled. This allowed a user to redeem collateral
( Maha in this case) by providing/burning Arth. The applicable fees for redemption are redemption fee ( variable based on time of last redeem with minimum of 0.5%) and the other being Stability Fees in Maha , which stands at 0% for Maha Redemption ( this fee can be decided through governance).
The purpose of redemption was to maintain Arth around the peg ( GMU) and the collateral is redeemed against open loans with the lowest CR ( however with a with a partial redemption , CR of a partially redeemed loan will improve and prevent a full redemption)
This proposal requests the fee to be increased so that redemptions are tapered until the TVL for other assets grow.
Link: https://discuss.mahadao.com/t/mip22-charging-a-stability-fee-on-maha-redemptions/437