This thread really inspired me to never release anything for free for decades.
If something you build brings in a lot of critique, it is likely something of great value. Because something that doesn't have value won't bring much critique at all.
Toady wasn't exactly raking in the cash, but he didn't need another job.
and if you find yourself blessed enough to be in that position does the road, then "reading HN" is a problem that solves itself ;)