Re: They are "mostly harmless", honest
As a matter of interest, I did a quick web search and found a page that says "Alexa is always listening but not continually recording. It doesn’t send anything to cloud servers until it hears you say the wake word (Alexa, Echo, or Computer)"
This ties in with my understanding and observation of how they work. And if this is the case, then a lot of the concerns mentioned are based on mis-information (not that I am promoting them, just pointing it out).
Is anyone able to actually verify this ?