Shame he couldn't do anything about that when he was either CEO, chairman or on the board of Twitter (for most of its existence). As Bloomberg said yesterday: "Twitter Is in This Mess Because Jack Dorsey Was Too Busy Being a Bitcoin Influencer" https://www.bloomberg.com/news/articles/2022-09-29/twitter-t... https://archive.ph/7ugqn
Whether he put 100% of his time into Twitter or 1%, that doesn't change the fact that he had very limited influence over his own company. Twitter's board is what has caused all their problems, often by explicitly rejecting Dorsey's advice.