Probably. You might also check the U_Groups column in the w3t_Users table to see if he's in the Moderators' group.
Do you know how to do that?
If not, I edited my post above to add a couple of display columns to the third query, and added a fourth query.
If you'll rerun all four queries, and post the results here, or PM them to me, I can tell you what query to run to fix it. Also mention which version you're running.