I mean... take your pick on who he hasn't paid, there are pleeeeenty of examples out there. He even lost the ability to engage in arbitration over the unpaid severance because he didn't pay the mediators lmfao. https://www.google.com/search?client=firefox-b-d&q=twitter+unpaid+bills

Serious question for you- why are you defending him? Like, the information demonstrating he's kind of stupid and a terrible person is so easily available to you. At this point you have to actively work to remain ignorant of it, and his history of trying to claim accomplishments that aren't his own. Why bother?