A happy medium may exist though, for example a Dev cart could be rewritten with something like the rickroll video, or that Skyrim intro meme. It could garner enough attention to let people know it's possible and easy to rewrite these things without giving explicit instructions. @Purin raises a valid point I hadn't considered until recently, there is evidence that actual distribution devices were used with these loose cartridges; and if these were ever to emerge in the wild... well whose to say. It's a bit of a damned if you do, damned if you don't kind of thing.