the 90 report is a requirement, but if you forget, and will have no interaction with immigration before your next flight out, you can save 2k and just not report. Once you exit it’s forgotten and resets the clock.
This is the bit where I get stuck - trying to find the submission I’ve just made. Why on Earth doesn’t the webpage have a drop down menu for navigation, or even just a ‘home’ button to take you back to the search page? Such poor GUI design 🫣