Well, in this thread, I don't think anyone called him a fanboy. They just wanted to know if he's compared the P5 to anything else in that price range.
And they're not fools. They, like a lot of people who visit head-fi, just want to know if they're a good deal. It's part of their hobby to discuss such things. From gorgonmusic's description, one would think he just heard something from the high-end forum.