Jack had his hands in so many pies. Cash App, Square, and also evangelizes cryptocurrency every chance he gets. His Twitter Bio just has one word in it: `Bitcoin`. I think he was spreading himself thinly being involved with Twitter too. Focus.
However, I still believe it can be fixed. As an example, my consumption of news related information has moved significantly to Twitter. Why not do a better job there, in trying to provide a kick-ass way for content creators/consumers, and charge them for it.