I mean, to be fair, we've had shit like Clockman and Cracks where originally they had barely any information on them except a few recollections of having seen it. They did turn out to be real but considering they were just personal accounts, they could've ended up being false memories or something. The Amazon source for ADWSS turned out bullshit as well, and Amazon's a trusted site. Even if it is bullshit, it'd be nice to have this article to at least have some record of whether Mario's Castle exists or not, that factor being decided if any sort of search for it happens. Basically, sure it could turn out fake, but it's worth a shot. If it doesn't exist, then the article can finally put that out there. I think this article could be balanced between Project Atlantis and Mario's Castle though, considering they're both related and have a lot of mystery surrounding them.
< Mario's Castle (lost build of cancelled game on Nintendo's "Project Atlantis" handheld console; existence unconfirmed; 1995-1998)