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.
They’re rarely enforceable elsewhere, anyway. They usually depend on intimidating people, since they’re not likely to win in court for the vast majority of cases (which is why they should be straight up illegal).