Of course, it's always been another load of bollocks.
He made claims to earnings potential that vastly exceeded that of an old neighbour of mine who was a real professional translator of complex and esoteric documents from multiple languages into English on behalf of HMG and large commercials.
I've shown a few bits of his supposed Swiss German posts to a friend of mine who happens to be Swiss from the German speaking bit. His response (when he stopped laughing) was that Bogbrush is clearly not familiar with Swiss German, that while it has a few eccentricities like any other dialect, it's pretty much always written in standard German and Bogbrush probably doesn't have much of a grasp of German at all.