Whether the posting pilot was foolish is up for debate, but I'd just like to throw in that the N number blatantly displayed in one shot is not his plane's actual N number. It's pretty clear it was Photoshopped.

In fact, if you watch the video carefully, there are two other instances where the ID card is visible in pan shots, and you can tell that there are subtle differences between the real N number and the prominently displayed one. For what it's worth...