Except you can’t make Steam offer their content offline like that. By altering the language they use it effectively makes them more transparent about what you are really paying for. So, in order to use the word “buy” or “purchase” they would have to make the content available offline, or they have to use a different word that essentially means “rent” or “subscribe” cause that is what is actually happening.
I lieu of that, I’d say the mods should just go limp. Stop moderating content and let posters run wild. The company needs to realize just how much their business model depends on all that unpaid labor.