RE: I received a traffic ticket in NYC. I wrote a letter explaining the US is a corporation and by extension the court as well and that they have no authority over me. Then this happened...

Based on the story above you didn't actually make a legal defense and appear to have gotten lucky this time. Seems you've found a nice tactic to make it appear like you are going to be more trouble, grand standing, in their courtroom than the ticket is worth.

Honestly I don't see a coherent legal defense in what you wrote. Do you haves something better up your sleeve for next time? It appears like you are just redefining what is a law and legitimate without much consistency but instead as it suits your needs in the moment. I don't know how well that would have worked out for you if you the case hadn't been dismissed for lack of evidence.

That being said, I hate tickets for stupid shit like you described and encourage everyone to clog the system and fight them. I am glad to hear you won regardless of the method. I hope you never have to try that legal defense out again. Best of luck!

He isn't making a legal defense.

He is putting the judge on notice that he knows what the game is, which tells the judge that he has two realistic choices:

Dismiss the ticket out of hand to avoid any record of what is going on
Let the hearing proceed as normal and risk letting any and all law enforcement that is there getting a glimpse into what is really going on (as well as any onlookers... but cases for people that they know are going to be problematic tend to be somehow scheduled to take place once all other cases have been dealt with).

The judge took the easy (and smart, IMNSH Opinion) way out and simply dismissed the case out of hand, completely avoiding any potential record containing publicly queryable information.

Sometimes the best defense is letting them know that you know the game they are playing.