I think Artemis' comment points out the fallacy of the argument.
But I'll admit, I took offense to Bill's comment, "It may be crappy but the guy who manages to create a beautiful artwork from it is really an artist." indicating that someone who uses 'other' programs, or who uses pen/pencil/brush, is not really an artist.
The crappy Paint program is like most any other program, in that you have to practice with it in order to produce something marginally attractive, and if you have good peripherals (like a tablet), all the better. I stopped using Paint decades ago, and have since relied on using quality programs that allow me to better express myself, without getting frustrated by limited tools. And I still strongly disagree on the notion of creativity being best expressed by the person who has to squeeze his talents through a quarter-inch hole. It merely results in constipation.
As to Picasso, Please don't judge creativity by Picasso's pop art. He virtually sold the idea of commercialized art. I think his later stuff is tripe (his earlier work was good). He made a name for himself and then went into making quick art for quick profits. That doesn't mean he was a good or bad artist, it means he was a good businessman. In fact, his business ethics in art are very popular now, especially with the ability to print on canvas and then paint with clear geclee.