I would hope that this is not in fact an issue of classism, Susan.

My feeling is that the vast majority of posts written like this are written by educated people (alright,young educated people, let's be ageist instead of classist) who know full well how to write properly, but who choose not to, for reasons best known to themselves.

That is their prerogative, just as it is mine to take issue with, and to poke gentle fun at, their stance.

Murray