I'm a little unsure how we count those, actually. His own storyline for his reviews would probably be an original canon, but I don't think those snippets would be taken as the canon character literally being there with him? Those portrayals are separate enough from the character's actual identity, and they're there for a specific enough purpose (that isn't really intended as fanfic) that, combined with the storyline's position as its own canon, it would probably be harmless to the original continuum. There are Real Person Fic implications too, but usually reviewers like IG are portraying a character as opposed to using an alias or something so we can maybe discount that.

To get at what I think you're getting at, though, and correct me if I'm wrong, no, the PPC wouldn't go into an Irate Gamer review and kill him for say, having Storm or a Megazord show up.