Nope. @haejin is a BS artist that rights superficial articles. If he was such a strong trader, he wouldn't have all his money sitting with @ranchorelaxo and trying to make a few bucks on the sly by raping rewards pool on Steemit.com
Exact same situation as when you get the hard sales push by "some guy" who says he has found the secrets of making money in real estate. And all you have to do is send him $49 for his course material.
If he really had the secret to making millions in real estate, he wouldn't be selling his courseware at $49 a pop.
Same story for @haejin. If he really knew how to make money with TA in crypto space, he wouldn't be wasting his time with $99 posts, at a rate of 10X per day.
Does that really sound like some super TA trader? That has enough free time to write up his 10X steemit articles per day.