Isn't that what I said? "Selling software" is distinct from "preventing others from selling copies of [said] software", and confusing the two is the source of

Isn't that what I said? "Selling software" is distinct from "preventing others from selling copies of [said] software", and confusing the two is the source of much fear, uncertainty, and doubt about the GPL, so some people get a little defensive when they're conflated. When I ran a small software shop, most of the work I sold to small business was built on libraries and other works that were GPL, but this didn't prevent me from charging money for it, it just meant that I couldn't prevent them from selling or giving away copies themselves. Of course, few small businesses are interested in paying for software and then providing it to their competitors, so in practice that never mattered.