But isn't that the whole point of this "MS Paint Challenge" thing all along, no?
That we use a crappy little paint program (without layers, without channels, colour-fill only at full opacity, with limited tool palette, etc.) that pretty much everyone has access to so everyone can play along?
While most anyone has access to Photoshop or Canvas or CorelDRAW or something similar (even MS Photo editor) it's the cheesiness of the work, much like those JP "oekaki" drawing board programs, that grants the simplicity of appeal for the end product, isn't it? Or its "wabi-sabi"? Or um, some other kind of campy aesthetic I can't think of? :p
Using MS-Paint is certainly like trying to paint a masterwork using a brick as a paintbrush, but I always thought that was what the "challenge" part of the event was. ^^