The term ``selling software'' can be confusing too
Strictly speaking, ``selling'' means trading goods for money. Selling a copy of a free program is legitimate, and we encourage it.
However, when people think of ``selling software'', they usually imagine doing it the way most companies do it: making the software proprietary rather than free.
So unless you're going to draw distinctions carefully, the way this article does, we suggest it is better to avoid using the term ``selling software'' and choose some other wording instead. For example, you could say ``distributing free software for a fee''--that is unambiguous