Hex-craft and 'reformed=no loot' punishment

Zen Caster joined the room. You are ineligible to earn loot due to previous behavioral restrictions. You earned an S- on Viktor!

I am wondering what the window period is between past negative behavior and forgiveness after doing the time. I think it has been about a month now that I receive this message. After being banned for two weeks, I came back with a positive attitude and have cut the toxicity out. I understand why they would do this and am just wondering how long it will last ty