I have absolutely seen this, and love to read out it's quotes to my wife. Things like "You're right, but for a stronger reason than you said:" and crap like that.
Even if it's correct about that, if it were a human, I'd assume they were 1-upping me on purpose to make themselves look better.
Surely, SOMEone at these companies realized training LLMs on the content of the internet (namely the vast amount of comment sections) would result in such outcomes. Or at least that they should weight heavily against that content for purposes of writing voice.