The guy is a total joke, please don't be so gullible lol. He says on the video that he worked at a penny stock bucket shop selling to flow induced by stock promoters. That is not a "market making" role and does not require any analytical ability other than pressing a sell button. Calling him a market maker is like calling the guy selling snake oil a trained physician.
Fair enough. Nonetheless, whatever his title was, their goal is to manipulate the market long enough (30 mn?) to fleece retailers by flooding buy or sell orders to trigger automated stops or elicit emotional reactions, then pulling the rug from under their feet. It's akin to pump and dump schemes common in low volume, hyped stocks. I don't know even the basic rules of what's legal or not, but I'll assume all of this falls under small fish swimming with whales and sharks should expect the unexpected.
watched part of Video#1: i'm not buying the guy's remourse not even for one second - he knew exactly who he was taking money from...and while spoofing too) maybe his firm went out of business due to competition or blown up, after all MMs don't always make money the way he makes it sound - they get run over too. so now he spills outdated stuff to shill for some software or whatever