To be clear, I meant only that “please” is costless (and you’re right that it’s only nearly so). This seemed relevant because we might therefore expect it to have devolved into meaninglessness, but this doesn’t seem to have happened.
I agree with the costs that you list, with the caveat that as I mentioned I’m unsure about the treadmill. I just also think commenting in that style has benefits as well, and I’m legitimately unsure which side dominates.
To be clear, I meant only that “please” is costless (and you’re right that it’s only nearly so). This seemed relevant because we might therefore expect it to have devolved into meaninglessness, but this doesn’t seem to have happened.
I agree with the costs that you list, with the caveat that as I mentioned I’m unsure about the treadmill. I just also think commenting in that style has benefits as well, and I’m legitimately unsure which side dominates.