While Mr Chelekis has indeed uncovered some fundamental truths of how the markets operate he is still only able to comment on what he has experienced. There are many ways to skin a cat and the way that one person does it may not suit the other.
Read everything with a pinch of salt until you have first hand experience. Only with experience comes rational judgement and everything else is hearsay.
Always remember that anyone who is selling something, no matter what it is, even information, is doing so for a reason, and that reason is not because they want to help out their fellow man!
I have received an infraction for posting some information that had copyright on it, but I thought as long as I left the copyright on it, it was ok to post. But, not to worry, what will be will be, and we shall now move on to more important matters.