Instead of reverting his edit, I re-edited the article to insert his entry into the correct alphabetically ordered place on the page.
Dear readers: What's the correct etiquette in this situation? Revert the edit? Politely remind Fish that Wikipedia is not a valid avenue of self-promotion, but rather an encyclopedia? Ignore it? Demand proof that Fish is indeed a "notable" poet?
More importantly, why should I even care about this stuff?