As the author, I can answer this: because I believe there is such a thing as "enough money." And I'm personally at a point where the decision in my mind is not between "build a great product that makes less money" vs "release a compromised product that makes more money". Instead, the decision is "build this app for my own private use" vs "release it and put up with dealing with users so that others can use too". And I'm genuinely on the fence about the latter most of the time.

Also, I have a proven track record of stopping doing things once they've run their course, so I'm pretty confident I'll be able to resist the temptation. Recent evidence: announcing my latest conference talk would be my final one https://www.youtube.com/watch?v=loTaZAkIZP0