It's not a simple wrong answer. It's a poorly designed system that causes a pattern of wrong answers, on this question and others. For comparison, consider the consensus on this site when that system is Google search giving wrong results.
Google works like crap sometimes. So does stackoverflow. The takeaway here is just that information provided by a stranger should always be taken with a grain of salt.
How can there be peace when someone is wrong in the internet?
So enraged that it makes you write a blog post with profanities in red, bold type no less!
How do you sleep at night, knowing that somebody, somewhere in the world is wrong, and you are powerless to challenge their mistake?
Speaking for myself, quite peacefully, thank you!
That was the same thought I had :)
And not only that, wrong answer on a privately owned for-profit website.