That's not how heuristics work. The heuristic is "this submission doesn't even follow the basic laws of grammar, therefore I can safely assume incompetence and

That's not how heuristics work. The heuristic is "this submission doesn't even follow the basic laws of grammar, therefore I can safely assume incompetence and ignore it entirely." You still have to do verification for what passes the heuristic, but it keeps 90% of the crap away.