Amazon Alexa is no doubt a great microphone but it’s also an exceptional bastion host for Amazon. And probably a great malware delivery device. I found out Alexa let me know my printer was running low on toner. So if it can do that it can spy in a lot of other things.
I don't think it's "spying" so much as reading the information supplied by the IPP enabled printer that's on the network. The printer readily supplies that information, the Alexa isn't really snooping. If anything, the printer shouldn't be supplying information across the network that readily - I know I turned off a lot of my printer's capabilities because I have no desire to let people use it outside of my local network.
I think the point is that alexa is actively scanning the network for that information, which begs the question what else is it scanning for, or might in a future automatic update?
Fair enough. It would be prudent to assume that your Alexa is actively looking for whatever open information is supplied by devices on your network, especially information that has been announced as being supported by Amazon[1].