So Many Digital Snitches

(Just a quick note: If you are a little paranoid, this little commentary will only make it worse. You have been warned.)
Have you ever had a brief conversation about something you're interested in, in the privacy of your own home? Then, a few moments later while you are wasting time on Facebook, an add pops up advertising just what you were talking about?
I recently mentioned to my wife that it was time to replace the furnace air filter. That evening, several Google Ads started showing deals on air purifiers and filters for my HVAC system.
Most of us are already suspicious of our smartphones, smart speakers, and smart TVS. “Ya, I already know about that stuff. And if they want to snoop, they are going to get really board”, you might say. I get that, my lifestyle is pretty boring too.
However, as they say on the late-night infomercials, “But Wait – There's More”
It is not just the obvious suspects snitching on you. Oh, No!! There is more!

https://listverse.com/2019/04/29/10-things-you-wont-believe-can-spy-on-you-but-do/
https://www.wired.com/story/strava-heat-map-military-bases-fitness-trackers-privacy/
https://www.cpp.edu/cyberfair/poster-information/documents/vacuum-robot-abstract.pdf
https://www.fastcompany.com/90291265/reminder-all-those-smart-devices-are-a-growing-security-threat
https://securityaffairs.com/74592/hacking/hacking-smart-vacuums.html