Because he makes a lot of bold/insulting claims and then fails to give one argument most of the time. When he does provide an argument it's very often nonsense (like with his analogy of someone being asked to calculate MAD).

>Should you not be far more concerned if it's true?

I am. I am also concerned about discrediting scientists without providing reasons. Creationism, anti-vaccination and climate change denial are all based on people not trusting scientists and following guys who just tell them scienc is nonsense. Taleb is very close to that line.

> What does it say about you that you are posting angry vitriolic comments online because someone called out scientists misusing statistical tools but that you are not as alarmed that such a thing could be happening?

He didn't call out anybody. He just threw plain insults without reasons. When you call out someone you say what is wrong with what they are doing, like this: "Hey, bankers, it's unfair that you make huge bets and don't pay out when you lose!", "Hey, investing firms, it's stupid that you treat a lucky few as celebrities while you can't have any confidence in their performance". Here is didn't called out people. He just asserted they are using one of the most used mathematical tools incorrectly, that it's because confusion in naming and that it should be disposed of. He didn't give one example of mistakes happening because of it. Now, people who follow him and believe that he is some kind of authority may start distrusting science or academia (as he is actively hostile vs both) exactly the same way anti-vaccination people do: just because some celebrity told them so. There is value in calling people like him out on their nonsense.

I'm not sure why it took you so long to flip the bozo bit (if you were attempting to dance asymptotically along the edge it really has been a bravura performance!), but that did it.