Writing headlines is a specialty - there are outstanding writers who will tell you they couldn't write a headline to save their lives.
Bill WalshOn occasion I omit commas. On occasion, I use them. (The more you know about English, the less you're likely to think there are unbreakable "rules" for a lot of these things.)
Bill WalshMachines aren't replacing proofreaders at all. Copy editors, who proofread and much, much more, use spellcheck as a tool but read every word that appears in the paper
Bill Walsh