I am good friends with SM2LIY - operator last weekend as SJ2W - and also SM2WMV, owner of the station.
I highly doubt he was signing S22W, using CPU generated keying (via the contest logging software). More likely it sounded like an extra did due to polar flutter.
Someone apparently was spotted a lot of busted calls on purpose last weekend, playing games. I was QRV at KH7XX and on Sunday was spotted as KH6XX. Over the next 15 minutes I worked 40 dupes who all assumed I was KH6XX, even though I signed my call (KH7XX) after every single dupe QSO, even slowing down significantly and adding time between the H-7-X to accentuate it was 7, not 6. Dupes continued to call in.
Who cares what the DX is sending - if packet tells me it's something else - then dammit that's what he must be.