You are hilarious, but I know what you mean. The grammar Nazi who has nothing better to connect with than the ONE missed or unnecessary comma should NOT be saying anything. What I love even better is to go to that person's work to see that they are punctuation perfect, content clear, and have a message that is essential to the world of words.

That said, I think as writers and readers we need to highlight important points in a piece so the writer knows that what was written connected with the reader, comment politely so other writers can appreciate a highlighted comment or an entire piece, and clap. DEFINITELY CLAP. Plus, if you like what that person writes, FOLLOW THEM.