I'm assuming this is a spin off as I had a conversation about this on another thread yesterday. The poster I asked about it insisted if they weren't polite to AI they'd break their 'habit' of using manners in day to day life.
So apparently some people can't adjust their communication style to suit the context.
Anyway, regardless of what others do I think it's important to maintain awareness that you're dealing with a machine not a person and treat it accordingly. Otherwise you end up like the OP of that other thread. So when I use AI, which I'm required to do at work, I don't say please and thank you to it.