"eating is for the greedy", noted.

A little side project might grow and become a chore / untenable, especially with some from the community expecting handouts without respect.

Case in point, reticulum. Also Nolan Lawson has a very good block post on it.

I don't think your position is reasonable even if I believe you just want to say that writing open source shouldn't be a main source of the income). I think it's perfectly okay to be rewarded for time, skill, effort, and a software itself.