He's just another net kook, or more likely some crank follower of some previous net kook from the grand old days of Usenet. There was this small cabal of anti-Einstein nutters who used to crank out pseudo-scientific babble, including math salads, to proclaim Einstein was totally wrong. I imagine there are still a few around, though the most famous ones like Archimedes Plutonium are dead now.
I first got on Usenet in the last days of that ancient epoch, when Plutonium was popping up and making his grand declarations, and Ed Conrad was declaring he'd dug up a fossilized human penis in his backyard that disproved the geological column. Ah, sometimes I miss those heady days!