I don't find Mehdi Hasan trustworthy in the least, based on his past political background and his clout-chasing, but I will commend him in this instance. Matt Taibbi, presumably assuming he'd be friendlier, or easy to roll, went on his show and revealed himself as even more of a pathetic hack. (there are several parts to this)
Similar to when Bari Weiss made the mistake of not contorting herself enough for Elon's whims, he got the unfollow:
Elon, threatened by Substack's plans, also decided to cut off links to Substack...even though many of his biggest sycophants, including Taibbi, make their money by that place.
Taibbi, clearly seeing this as the right time to claim he can leave for some pure reason rather than being humiliated at every turn and finally crushed by the boot he developed such a taste for, is getting the hell out (for now, anyway).
If only those other creeps in the grifter circuit could go with him.