How do you disable choosing your own answer as best?

Question

Why can users select their own answer as the best? How do we disable this?

Answer 1

I think choosing  your answer as best is fine, but getting same score would not be a good idea. So I like users be able to pick their own answer as best but not to get that much of score as some strange's answer picked the best

Comments

I don't think it is a good idea, that's why I'm asking if I can disable this functionality...

Answer 2

One option is: In advanced theme you can check if question belongs to user, then remove the "best answer button" by CSS.

But you are right, there should be an option in admin panel!