He might have done it by mistake.
Kind of hard to do an application post, press enter for a couple of lines, and then copy and paste the signature code in by mistake. Twice.
Maybe he was not sure how to set a signature the right way?
If he really is the original owner of his account, it means he was here for a minimum of 18 weeks; plenty to learn how to set signatures. The only exception is if he bought the account, in which he still deserves a neutral.