I agree. Remember Amazon's little dash buttons they sold to allow quick reordering of products? They contain a microphone. I'm pretty sure they didn't mention that in their public documents, and it never seems to have been used for anything except an ultrasonic pairing procedure with some iPhones, but it definitely exists. HN didn't get mad because Amazon has never claimed to be a morally good company, so they aren't the current corporate bogeyman. It seems to me like disclosing when I sell a product all of the nefarious ways it could possibly be OTA updated is a little bit of an extreme position, given that even a simple accelerometer can be used to track you and sometimes record sound. In short, if you think a company is actively working against your well being, don't put anything they make in your house. Otherwise, don't worry.