To be honest, i didn't even know about that site until earlier this year. Someone contacted me about a bike that was being sold, it was a very, very rare Honda SOHC/4, only ever a handful produced, only 6 left in existence in the UK. Well, I thought, I better have a chat with the seller. When i spoke to the chap, it was a CB550 K3........two a penny !!! The really sad thing about the whole episode was that he had seen that info on that site and purchased the bike on the strength of the info and is now stuffed with a bike that he paid about 10 times more for it than it will ever be worth in a million years. Do i feel sorry for him, no, most definitely not, he thought he was onto a fast buck. It does say in their info the data cannot be trusted, especially on old bikes and it also proves that a majority of info on the tinternet, especially about these old Hondas, it at best wrong and at worst, total crap.
It was good that you did share the link as now at least it's documented here and hopefully will prevent others thinking they have a one off build, very rare Honda worth a Trillion pounds.