I'm a little worried about the professional ramifications he'll face. His employer is definitely aware of him burning down all of his open source code. That's got to make for awkward conversations with his team, peers, and manager. It's also going to make future job hunting weird if that subject is broached.
How did this escalate to this point? Why couldn't people be nicer to him? Even if the unsound arguments are true, there are better ways to offer constructive criticism. People needlessly backed this man into a corner from which he saw this as the only solution. He's going to be dealing with this for some time. :(