Point all you like. Referring to 'the average illiterate' (in jest, hence the silly smiley) is not the same thing as calling any individual illiterate. Preserving most of these rules does not mean every single one of them must be adhered to rigidly - see the remark about English grammar not being the Will Of Godde.

Pedantry for the sake of it, because it makes for good and interesting debate, is one of the oldest and most used internet traditions.