I'm inclined to think this was a labor of love, not profit.
There are people out there who quit their jobs to go backpacking on arduous trails for 5 months. It's long, hard work, but they do it for the other joys that come with the experience. And they do it all with the expectation of returning back to working life--not on cashing out. I don't see how what OP did is any different, other than it being a digital journey rather than a physical one.
Congrats, OP.