Yikes. How do you know this? That's a big allegation for someone hoping to do business on this forum.
He had a prior account with a website listing his products for sale which was called out by a few forum members on the Alaska upgrade code thread, then he created this new account to sell.
Once you get approved for the status match, Alaska gives you 4 upgrade codes, 4 lounge passes, and the mvp nomination for free. So that is how is he periodically getting these accounts over time and not all at once, because he has to space out his fake status matches so it doesn't get flagged by Alaska.