Along with other things said here, people tend to “forget” that there’s a real person on the other end.

I vaguely recall Nicholas Christakis talking about a study they made, where they created a bot which would simply remind people of the fact that there’s a real person on the other end, and they found that it would help. (That study was done in some university platform and is centuries old in internet time, though. I think he spoke about it about 6 years ago on podcast with Sam Harris.)