Moonwell proposes rate changes to curb bad‑debt but USDC withdrawals remain stalled

Moonwell, a DeFi lending protocol, released a September 4 governance update outlining a multi‑part recovery plan after the August 27 MAMO market incident on Base. The proposal, MIP‑X66, seeks to adjust market‑risk settings, revise interest‑rate models, and use protocol reserves to recapitalize the USDC market.

Projected reduction in bad‑debt interest

Anthias Labs, Moonwell’s risk adviser, estimates that the new rate structure across seven Base markets would lower monthly interest on outstanding bad debt from roughly $338,785 to $50,273, assuming balances and utilization stay constant. This represents an estimated monthly saving of $288,512, or about 85%.

What the proposal does not guarantee

The figures address slower growth of existing debt; they do not reflect cash recovered, principal forgiven, or funds returned to suppliers. Even with the projected change, about $50,273 in interest would continue to accrue each month.

Reserve withdrawals and user funds

MIP‑X66 includes a component to withdraw available protocol reserves on Base and OP Mainnet, convert them to USDC, and recapitalize the market. Moonwell states that only protocol‑owned assets would be used, explicitly excluding user deposits. The update did not confirm that any reserve transfers have occurred or provide a repayment schedule for suppliers.

Outstanding user concerns

Depositors, such as a forum user who placed a five‑figure USDC position on MAMO on September 2, report that withdrawal liquidity remains unavailable. The user requested detailed figures on market cash, performing and impaired debt, reserves, and recoveries, as well as clear policies for post‑incident deposits and withdrawals. No compensation program or final haircut has been announced.

Next steps and borrowing outlook

Moonwell retained security firm Zero Shadow to assist with recovery, but no specific cash recovery amount or guarantee of full supplier repayment was provided. The protocol also indicated that reopening borrowing on Base would depend on further risk assessments, and execution of MIP‑X66 alone does not constitute a borrowing restart.