There's just something fucking hilarious about laying off employees, mocking them, and being sued for improperly firing them -- and then whining that your competitor hired them and that they have access to Twitter information still.
I believe this fits well under the "fuck around and find out" doctrine.
Elon views even previous, no longer employed workers as his slaves for life. The truly disturbing thing is he's not the only one with that mindset.
You can take the man out of the emerald mine, but you can't take the emerald mine out of the man!