I was speaking from past/personal experience when I made my comment above. I know that many people have purchased parts from him and received what they ordered but I personally know quite a few that have been screwed by him (besides myself).
Before ebay and his use of the internet to sell parts, he really stuck it to people because all of his transactions were done by mail with no feedback forum or mass way to communicate expereiences with him. If he didn't send something or sent the wrong part and you tried to contact him, they would send you from one warehouse to another calling and calling with no one willing to help. Of course, he was no where to be found and he never returned a call.
When he started selling on ebay, he knew he coudln't continue his practices as before. Again, if you were around pre-ebay and pre-mass use of the internet (to communicate dealings with him) and dealt with him, there was a good chance the transaction could go bad. Again, those who have dealt with him in the last ten years or so probably won't be familiar with his earlier practices.