I meant more that the % is so low that even if the usage is on top of all other usage (not a completely clear statement to make), it's like starting to mention any other thing in the long tail of technology leaving behind a "massive carbon footprint". Yes, it matters, especially if you were making a report focused on sources of carbon footprint, but in general, saying "AI carbon footprint is bad" just seems like wanting to give it a bad name. In reality AI tech doesn't seem to be such a big contributor percentage-wise. Of course it should still be optimized, not arguing that.