Simple, he calls higher highs and is right more often in a bull market but is wrong more often in a bear market. He made outlandish calls in December and January that are still down bigtime.
His major downfall though is him silencing people that provide counterpoints to his TA by flagging them to death. I have had my rep destroyed twice by him and starjuno simply because I suggested coins like Bitconnect were a scam and it was bad TA to suggest buying in at $400. It is now at $1.17, so this is a brutally unfair system where someone can make $300 on terrible advice, and in turn flag and wipe out pending payments because someone argued against him
This is absolutely correct. A rising market makes everyone look like a genius.
Analysis is a weird game. You can be right only 30% of the time and make tons of money if your money management rules are good.
Is haejin good at TA? No - based on my almost 20 years in the game. The good news is that crypto is an incredibly volatile asset class so it almost doesn't matter. All his recent posts have been RandomCoin up 3498735% since analysis! And I'm thinking yeah... the whole market is up.
He's done a hell of a job of figuring out how to profit from content though.