Bono was widely read in 2003 because he started so early that, for a time, his was virtually the only journal available to be read. Also, he was hiking in winter weather, which tended to make the details somewhat more interesting than they might otherwise have been.
The Flying Scotsman then kicked in with his journal, shortly thereafter, and his journal was actually more readable and interesting, but he had time limits on his hike, so his journal terminated prematurely.
Then, as Bono’s hike sputtered out, with a few false starts here and there, people hung on, hoping for him; but, ultimately, we all had to acknowledge that he had burned out, lost focus, changed direction (perhaps impelled by a failed affair on the trail), and simply wasn’t going to finish.
He lost his heart; in more ways than one.
Sincerely–Conan.
Conan