OK, lets put it another way. If everyone who deserves support for their work is going to be posted on HN, its going to take a long time until the last one gets their money.
To me, if Will is trying to build software that is genuinely valuable to people, and if people are willing to give them money so that software continues to exist, then that's enough. I don't think Will is also obligated to solve Open Source funding on a systemic level. "Do things that don't scale" is still often sound business advice.