On this question: What set is this?, a user posted a clearly incorrect answer. It almost immediately got an upvote even though I posted a comment very quickly proving that it was wrong. It seems fairly suspicious to me that a wrong answer got upvoted when it is generally so hard to get upvotes on correct answers. After another user posted a correct answer, he edited his to be correct and kept the upvote. Is this fair? Are users that have lots of reputation getting help from other users in getting more?
Clearly the user in question knows how to solve the problem, I am not trying to insinuate that he does not. It just seems so odd that his wrong answer was immediately upvoted and that there is nothing I can do to remove it since it was given by another user.