He’s as far from stoic as I can possibly imagine. His hairtrigger easily offended argumentative twitter presence is maybe even more sensitive and reactive and thin skinned than trump.
Regarding his behavior. I think he just enjoys being human. After all, if he was ruled by emotions he'd not survive the trader job.
Regarding his online presence, anyone knowing his works also knows that he's using Twitter purely to mess with people. He stated that many times in his Incerto series.
Sometimes it's easy to forget what is the actual core of a given philosophy / enterprise / etc. Hence my whole comment. It's worthwhile to know, I think, that stoicism has a very important component comprised of pure logic, which Taleb seems to be hyped about (not without a reason).
I wouldn't call Taleb a member of the top-3 stoics though. He's balancing on the verge of being an outcast rather than hanging out with mainstream stoic crowds.
You can say he’s promoting “logical stoicism” just like Ayn Rand fans can say that “it’s okay to be ideologically against handouts while taking them,” but we both know deep down that these people aren’t practicing what they preach.
I like Taleb a lot but it took me a little while to understand that he was writing an idealized version of himself and his philosophy that is frankly fictional but still has great value.
> "but we both know deep down that these people aren’t practicing what they preach"
Actually, it's one of core tenets of his philosophy. "don't tell what to do, show me what you did in the same situation".