Grammar Girl, the estimable Mignon Fogarty, has re-posted for National Grammar Day her "Top Ten Grammar Myths."
The first, the very first, comment was from a self-described English professor, Renee Schuls-Jacobson, who commented, "As an English professor, there are, in fact, formal rules for writing. We can choose to break or disregard the rules but 'irregardless' is NOT a word. And just because something has become 'widely accepted' or 'broadly used' doesn't mean that it is actually proper."
The first point, of course, is that whenever you see someone, like Clark Elder Morrow, flailing the "not a word" banner about some word which, though not acceptable for formal written English is nevertheless widely used and understood, you understand that you have encountered a charlatan.
But further, and I think you see where I'm going here, Professor Schuls-Jacobson introduces her peeve with a misplaced modifier. It is not the "formal rules" that are an English professor but Ms. Schuls-Jacobson.
I haven't explored all the comments to determine that the good professor has been subjected to the ridicule she has earned.
Consider it done.