I remember when I argued for ms paint on these forums, and I was in the minority by a landslide. This is a nice turn around.
Of course you must recognize that other programs have capabilities that ms paint does not, and so they have their uses. MS Paint is a bare bone simple program, that is user friendly and excellent for pixel work. For that simple basic function, it excels, and for that it should be respected.
Its also great to learn on.