Seatguru also has a fair number of downright mistakes, not so much on domestic fleets, but, for example, on the AF A380 (hardly an obscure third-world airline), Seatguru shows a galley on the right (starboard) side of the front of the upper deck, when, in fact, the space has a "gallery" basically an empty space with some screens and an uncomfortable bench.

Over on the AF forum, I have seen numerous posts expressing concern and then confusion over this error by Seatguru,