Any user account inactive for a period of time of 2 consecutive years will have their permissions removed. Inactivity is defined as no edits or log actions in that 2 years period.
Users misusing this tool-set by repeatedly marking bad edits as patrolled or using the rollback tool to revert constructive edits or for edit warring or content disputes may have their permissions revoked. Removal can be done by an administrator at any time, at their discretion. Advance notice is not required, but may be given. Users who have had their permissions revoked may not be re-granted the permission without a formal application.