It's possible he could have been a profitable trader at one point. It appears he is now a vendor and retired trader. This makes sense since his teachings are more descriptive of the price-action of 5-minute charts from 10-20 years ago than current PA.
i just went onto brooks site...doesn't say anything about being a retired trader.
Seems he sell courses and books too and offers 100% money back on the courses (which are only a couple of hundred bucks in the first place!). Had a brief gander at a ebook he gives out when you take up the course ( he has put some free sections of the book on the site), sounds interesting. Most struggling traders here should take this guy's course, see if it is for them, if not, claim a full refund! If you make money from his teachings, don't claim a refund! I don't get why struggling guys here don't do this!