Oh, blah. Don't let yourself get talked out of giving feedback. If a frail wilting flower posts something on the internet, she's risking responses of all kinds. She needs to suck it up.

Also, someone criticizing your word omission in feedback needs to relax, too. There's a difference between, say, typo-ing in a letter to your grandmother and in a story you're publishing in a public forum. Unless there's a rule on the comm that forbids honest feedback, I don't see where you were mean. It's not like you said "you're a moron! you suck! you should slash your wrists at once!"