A few points about this guy.

1.- He is right about moneylines faves not being always a bad deal. If your model gives you a better win probability than the one implied on the odds, the bet has +EV. He said that, so looks like he understand value, although he later goes to the usual crap "a winner is a winner, no matter the odds". So, a bipolar guy...

2.- One problem is, he most possibly does not have a reliable model. He usually goes into small streaks, "hot" teams and such nosense. So, it is hard to evaluate the correct probabilities and the EV.

3.- Betting into large favorites has a mind trap. You are skewing the distribution, with a higher probability of being ahead on the short run, balanced by a deeper hole probability if things go wrong. So, you see the bankroll growing most of the days until a large loss day. And then once again the bankroll starts climbing. So, the mind tricks you into thinking that the system is a winner, as most days confirm it, and disregard the bad days as unlucky.

4.- As DrStale said, once the good streak kicks in, the guy thinks he is very smart and gets cocky. And that is the stuff that made Brock famous.

5.- Any real handicapper knows that the line is not easy to beat. There are seldom EV higher than 3%, especially on sides. So, this is a long run grind, and you must extract every cent if you want to be a long term winner. Brahmabull is giving back 1%+ value for not shopping the best line, so the chances to be a long run winner are diminished.

In the end, he is clearly not a sharp gambler. I wish him good, hopefully he continue winning, and learn and improve his betting. And better yet, he learns that being humble is the way to go in life.