> When I hear "ChatGPT says..." on some topic at work, I interpret that as "Let me google that for you, only I neither care nor respect you enough to bother confirming that that answer is correct."

I have a less cynical take. These are casual replies, and being forthright about AI usage should be encouraged in such circumstances. It's a cue for you to take it with a grain of salt. By discouraging this you are encouraging the opposite: for people to mask their AI usage and pretend they are experts or did extensive research on their own.

If you wish to dismiss replies that admit AI usage you are free to do so. But you lose that freedom when people start to hide the origins of their information out of peer pressure or shame.