> But if you recognize that somebody is talking you about something that is, really, a defect in your software, don’t do the error of reducing the interaction to a vile matter of money.

If an open-source project grows to the point where time is insufficient to maintain it alongside your day-to-day job, then the matter of money becomes inevitable. And I'm not talking about allocating one's entire free time to the project, but just the time one assesses to be reasonable for this hobby, which can be rather short because of other occupations (rest, family, other hobbies, etc).