Mr Dietz you are a really smart man. You saw an opportunity to exploit and you exploited it well. Anyone who does a Google search on you can see you don't advertise. And pointing out that you don't advertise only increases the interest in the results of various contests that you do mention.
Yes, in many ways you are like Rolls-Royce. By not advertising but by mentioning your contest succeses, and then by saying you don't solicit customers only raises interest and your "stock price" so to speak.
It's really brilliant. You're saying "I'm so good at what I do only a select group gets my advice, and you can't buy it." What sports bettor wouldn't want to be part of your "in crowd." Well done.