I once had someone start _arguing with me_ about stuff using generative text on Slack or generated email replies. Not even to provide information, but just to write flat denials to even continue discussion on the subject. This person had a very distinctive writing style, and the shift to the AI writing style felt pretty obvious and uncanny.

I can’t describe how disturbing it was to realize that my voice suddenly no longer mattered, and that I was speaking to something that would never get tired of creatively dismissing my ideas without ever really addressing them. This behavior compounded and was unaddressed by anyone, no one I talked to seemed willing to try actually pushing back against it. Best solution they had was to have physical meetings w/ n>1 people on each side in the room. Trust plummeted, and eventually all meetings with that team were recorded and transcripted, and people started talking like they were on stage vs trying to solve shared problems. Work ground to a halt on even basic things, and I ended up leaving. This was on a pretty major project that has a name people here would know, but don’t ask me what!