Searching around the unanswered questions I saw this question which hadn't had any answers before and now I found that it recently has three answers, and I suppose that this happen because some user offered a bounty on this question.
My concern is that the user who offer the bounty gave it to a very poor written and definitely wrong answer, which I even downvoted because as I said it's totally wrong, but even more curious is the fact that 5 users upvoted that answer (?). I think this isn't a good behavior. I mean what's the point to offer a bounty if you give it to someone who wrote an incorrect answer!
So my question is, what should I do if I see things like this? Should I call the moderators? Thanks in advance for your answers.