Somebody should tell Grammar Guy that English, unlike Latin, is not a dead language. It changes over time.
He should not be fooled into thinking that sentences won’t be peppered with nouns that have become verbs. The language is salted with such examples. He should drink some tea, sleep on it, and divorce himself from such rigid thinking. I should mail him a letter. Maybe lure him to switch his outlook.
OH I SEE WHAT YOU DID THERE
I may make a xerox of it