Narrow it down. Don’t try to refute every single inaccurate, deceptive and prejudiced statement in the idiotic, poorly written piece you are complaining about. Pick one or two. If you do a great job, the editor might ask you to write something longer on the same subject. Honestly! It happened to me twice! I even got paid! $25! I guess that’s sort of semi-self promotion, so I won’t bother telling you about the three awards I won from the International Special Events Society.