Whether the frequent flyer miles game seems to be historically rewarding, or in dire straits, depends on your perspective and time horizon. The game is different than it was 2 years ago, very different than it was 5 years ago, and orders of magnitude different than it was fifteen years ago.
If you got into the game any time since 2008, the current state of affairs must be downright depressing. You got in at one of the most generous times in history. Programs have gotten smarter, and loopholes close. But on the whole they haven’t gotten simpler, so outsized opportunities remain.
The programs are like the casino house — they set the rules, so over time and across the majority of their customers they’re the ones who should win. The game though is still fun to play, and a small percentage of players can still win. That small percentage, of course, is us.