Nobody forced Tesla to file an SEC form 8K, officially designating his Twitter account as an official source of material information on Tesla for investors. But

Nobody forced Tesla to file an SEC form 8K, officially designating his Twitter account as an official source of material information on Tesla for investors. But once that was done, yes, every character out of that account must be 100% truthful and complete. Because it has been affirmatively stated to be truthful material information.