Sometimes I face this ethical dilemma when I want to downvote a bad answer but I'm not sure whether I should.
On the one hand, there's the chance of a conflict of interest: I have answered the question as well and deep down I want to win the green checkmark ;)
On the other hand, the answer is objectively bad or counterproductive.
Should I restrain from voting and let others in the community take care of the bad answer?