Look at this user's profile. I found that his reputation is 11. But actually his question got 3 upvotes (without any downvote). I think his reputation should be 16.
Look at the screen shots captured while asking this question.
Note: While asking this question that user got another upvote so his total reputation was became 16. Shouldn't it be 21?
He is only 9 days old. So there is no chance that we miss very old points. An this user has only 1 question at a time of asking this question.