Your former employer (and anyone else you have done significant business with) can always find some flimsy basis for a lawsuit that will cost you several dozens of sleepless nights and $10k-$20k in lawyers fees, before it is thrown out by the judge.
What is stopping the other guy is they are not pissed off enough to throw $50k-$100k in the toilet for the lawyers fees and distraction to punish you unjustly.
Not signing does not actually protect you from baseless suits, if you run your mouth.
Your former employer (and anyone else you have done significant business with) can always find some flimsy basis for a lawsuit that will cost you several dozens of sleepless nights and $10k-$20k in lawyers fees, before it is thrown out by the judge.
What is stopping the other guy is they are not pissed off enough to throw $50k-$100k in the toilet for the lawyers fees and distraction to punish you unjustly.
Not signing does not actually protect you from baseless suits, if you run your mouth.