Separate frustration: needing a timed-entry permit for everything. It used to be you could wake up, glance at the sky and check the weather and decide where you're going and how far you might want to go. Now you have to hover over the computer days in advance, or refresh at just the right time to book a spot because certain time windows for entry haven't been released on the website yet, and won't be available to book until the day prior at a specific time.
And if the weather is bad on the day, you're probably out of luck for the next few days, and potentially the next week if you didn't think ahead and buy permits for any other days you might want to go.
I gave up on trying to get camping reservations altogether. They were gone within minutes of release.
To put it another way, they could pay a $40 fee or lose $100 by doing nothing. Most people would rather pay the fee and get their $60 back.
Not surprisingly, this is also the exact model that hotels use...