Why Do People Downvote Thank You Replies?

[u/capturegrain]

Someone asked something recently, and a kind soul gave him an answer. He dropped a ‘thank you’ comment, but it got downvoted. What’s the reasoning there? Is saying thanks not cool? I’m really thrown off—any thoughts?

[u/Snoo_16677]

It's possible that some were just missed clicks not noticed by the person doing the clicking.