I have to state clearly that you, and he, are talking as if the numbers he posted are saying something which they very much do not. He claimed a bunch of numbers with bad dates was indicating fraud. That's incorrect and for the record it's not what Social Security fraud looks like. If it were that simple it would be nearly non-existent because a half-trained wombat could have found and flagged fraudulent activity all day.
What he was really seeing was a bunch of numbers assigned to people who have been dead since before the records were digitized. Nobody's gone back and corrected the dates on a bunch of people who've been dead for decades, because it would take time and money that was not made available for the task.