Well the simple fact is that people managed to develop video games just fine without the use of Twitter right up until 2006. It's not necessary, and if you only find grief on it, why use it. It's not a valid excuse to close a company.
Billions of people deal with stress every single day at work. Grow up and deal with it. At least he has the option of just not using Twitter, or other social media. Most people are just stuck with a shitty boss, co-workers, etc.
You give that guy a standard office job, or better yet manual labor, working for a boss who doesn't give a shit about your feelings, and he'll be begging to go back to working for himself making video games.