Julie, I was not being harsh, nor was Ros or E - only explaining how WikiTree works, since Richard apparently does not understand, and jumped to an incorrect conclusion that "someone added the wrong grandparents" to his profile.
If you check the change pages for his profile, you will see that he connected himself to his father, which is how his father's parents came to appear as his grandparents. If those are not his grandparents then the person he connected as his father is not his father because there is a very good source for his father being the child of those grandparents in question.
We are all aware that newcomers tend to make mistakes - in fact, oldtimers also make mistakes, although perhaps not as many - it's the way we have of knowing that we are human! What we're trying to do is to provide the information about how WikiTree works, as well as how it doesn't work. Soon, when he becomes an old-timer, he'll be doing the same for the newcomers … that is, IF we all help him to reach that point of comfort!