Meta is reportedly keeping internal block lists of former employees who are ineligible for rehire, regardless of past performance.The lists include names of employees who were underperforming or violated company policies, but some claim they were added without documented issues.Getting off the 'block list' is challenging; even a vice president's approval may not reverse the status.Meta's approach of maintaining large-scale 'Do Not Rehire' lists is uncommon in the tech industry.