I absolutely despise Grammar Nazis. They point out mistakes just to look smart & make someone else look dumb. This particular Grammar Nazi even calls the other person a retard. I just saw this on a Paquiao article & I don’t know either of them, but the Leonard person deserves to have a rat poop in his coffee.
On a tangent, not speaking English well has ZERO bearing on a person’s intelligence. I hate it when Filipinos laugh at someone who is speaking with a Pinoy accent or in “Barok” style. Do we laugh when we hear a French person struggle with English? No, we find it cute & charming.