WA2YUN works on Wake periodically and I've heard him on 20m SSB before (on a net). He has a 6M beacon active even when he's not on island which the JA's frequently hear and it drives them nuts (hearing a robot with no human to work).
A KH9WF bad packet spot precipitated the madness today.... absolutely was KH0WF, not KH9.
I recently got a LoTW confirmation from WA2YUN/KH8 and I have his QSL card.
I worked him back in June while in the ANZA net. Many in the forum don't want anything to do with a net contact but that was the only time I heard him.