Today I noticed that the negative trust of jkoil has disappeared

Thanks to all of you and especially to nutildah.
You may still need to PM hZti to let him know your current situation.
Right now hZti's red feedback has no power to show as he is not DT, but that will change soon when one of the DT1s adds him to his trust list in the future. So ask him to remove that tag from your profile. This is just friendly reminder for him.