Yeah, I saw that post before the shutdown of the forum.
I have no idea why some people associate Klonoa with the Sonic series, they are just pretty different to me. I have to admit that I don't play Sonic games except Sonic R, so I don't really know the reason. Maybe because Sonic is way more famous?
I am not trying to argue with anyone; instead of that, I feel sorry for you. Those upset members might think Klonoa's games got deeper stories but were ignored for a long time. So they are sensitive about anything related to the Sonic series - which is usually compared to the Klonoa series by some people.