Certainly, no contributors get into projects with the sole purpose to get a financial gain out of them. Open source has never been about money either. But for you as an author, the lack of funds to sustain your ideas and pay for even a small portion of the time you’re spending on them is—I’m not going to lie—devastating. It may not be your concern at first but it will inevitably become one when your ideas gain popularity, demanding significantly more time than there are hours in a day.