Edited to add: Having a non paying client is a problem that will affect most freelance developers at some point. It won't appear as whining but best not to name and shame. It could prejudice your case if you go to court. Speak to a lawyer.
Edited to add: Having a non paying client is a problem that will affect most freelance developers at some point. It won't appear as whining but best not to name and shame. It could prejudice your case if you go to court. Speak to a lawyer.
If someone tells you they'll give you a $10,000 to do or say something ridiculous (eat a week old pizza, drink milk through your nose, etc), you can't sue them when they don't deliver; They aren't on the hook for $10,000.
This depends on both what the payment is for, and which US jurisdiction's law binds. There are circumstances in California, e.g., for which there is a $5,000 limit -- and circumstances for which there is a $100,000 limit.
Which is one reason why you should go to a lawyer.