I have. I bought a couple of NSM jukeboxes from him in 2008 or 2009. Picked them up at his house. Fwiw, he was tall, with gray curly hair. He looked nothing at all like i had thought he'd look.
I never understood how someone who has sold more arcade parts than McDonald's has burgers was able to stay so invisible all these years. I've always believed he worked at Williams at some point.