So you say, but inherent in the drawing of that line, anywhere, is the legal authority for one entity to prevent another from engaging in creative activity. Once upon a time it was not uncommon within online communities to believe, as I do, that such a prohibition is morally perilous and has indeed done more to hinder creative expression than to reward or protect it.
> If you come knock on my door to sell me shit, you're fine.
I don't consider that to be fine, either. There is a time and place for sales pitches; my front porch ain't it.