kUSD has mostly been above peg following the introduction of the savings rate. Even with the stability fee being lowered to 20%, we still see kUSD sitting at multiple cents above the dollar. Also, as per Trophy Case’s Post, “At this point I believe that our high fees are hurting the protocol more than helping by hurting adoption.”
Please see his post KIP-018 for more arguments regarding why we should continue to lower the stability fee.