[buro9]

A possible exception: When you have no means to afford a lawyer and the case is obviously frivolous.

Whilst I would nearly always go for shutting up, we've probably all witnessed the David being sued by a Goliath and their only viable action is to make it know and get support.

That isn't what's happening here though... but no rule is black and white.

[nailer]

Also: if you're a game developer, and Zenimax offers you a job, and you know this is how they treat people people who've moved on, you might consider taking a different role.

[danieltillett]

Yes when you have nothing to lose you can afford to not worry about the legal niceties.