It mildly upsets me, because I think the impulse to denigrate that which we oppose is a harmful one which, if cultivated, we can all too readily turn on people who don't deserve it. But it's not a real slur for real people. (Note that in Star Wars, where many people got this slur from, droids are – or at least, have the potential to be – people, albeit they are usually enslaved, and subject to arbitrary mind wipes.)

However, I couldn't care less about the feelings of chatbots. What I do care about is the feelings of the people to whom the slurs were originally directed, and (generally) the kind of culture that this creates. The use of slurs is a symptom, rather than a cause, but complaining about slurs does get people asking the kinds of questions you're asking, which is a positive.

I would not have said anything if the word "clanker", alone, had been used. But if you look at GP's other comments, I think you'll see evidence to support my musings about the kind of attitude that the practice of slur use cultivates.

It’s not about defending the feelings of chat bots but it does normalize name-calling for the person who is using the word clanker.

It’s not good for your mental health.