I think OP was just pointing out the irony of complaining about high school English questions while making a high school-level English usage mistake (would of vs. would have)
English prescriptivists are even more ironic-er. If they'd of bothered to take even an undergraduate level course in linguistics, they'd understand how wasteful a pastime "grammar nazi" is.
Can you define a couple of hundred? Just to be clear I am a language descriptivist, and am looking for a timeline I can hang you on for being wrong. Also to preface, if you pick a timeline older then the phrase “the bees knees”I will think you are irrelevant, and if you can pick a younger phrase but I can show language evolution on top of that, I will also consider you irrelevant.