The article is very well written but he isn't adding anything new to us ddf guys buying a f class ticket and getting a full refund is knowledge for every child that needs to hit a spending threshold and booking a flight on a busy route on a busy day would almost always get people bumped as every yeshiva boy knows coming back from Israel bein hazmanim would almost always be an option to fly in the next flight etc and get a 200$ voucher
The only thing I have never had is a party in a lounge