We are trying to cleanup our user database by making the retired users unsearchable in the assignee field and reporters field. Since some of these users have created issues and dashboards and deleting them is not an option for us.
As previously read, we have already removed the necessary groups and roles the users belong to. However, upon testing, we saw that the issue can still be set to these users as the reporter (when Modify Reporter is on). Please let us know what other configuration needs to be done in order to completely hide these users. Thanks!