Why isn't telling someone to shut up protected free speech? There is no requirement to comply. He could have just as easily responded: "No" and continued to tweet as he wanted.
The employee/employer relationship is what’s different, along with the context (workplace activity) of where the communication is taking place. Unclear on why this is being disregarded. When did we start presuming that freedom of speech included the ability to, without consequence to your performance evaluation, talk shit about your employer or boss? The employer/employee relationship is all about your performance in relation to your compensation. Talking shit in a consequential way (in view of employer) reflects poorly on your performance for many and various reasons. When threshold of nuisance is exceeded, gtfo. Your contribution is eclipsed by your distraction.
>> Why isn't telling someone to shut up protected free speech?
You know the first amendment doesn't apply to people right? It's a restriction on what the government can or can not do. The government can't restrict your free speech. Your employer can. Twitter can too, and that's what Elon is against.
I agree that he could have just ignored them, but he chose to ignore them completely by getting them out of his company. That's his choice.