Discussing the people's understanding of the split infinitive, Fowler said, "Those who neither know nor care are the vast majority, and are a happy folk, to be envied by most of the minority classes."
Fowler's dictum holds for many other prescriptive rules of grammar. In many cases, ignorance is bliss. Your writing will probably be better, because you're not twisting yourself into knots trying to avoid some illusory error, and you won't waste your time thinking about other people's grammar when you should be attending to their meaning.