I don't understand what you're suggesting or pointing me to about what evidence there is about what the people who had these Roomba's knew. You are making clai

I don't understand what you're suggesting or pointing me to about what evidence there is about what the people who had these Roomba's knew. You are making claims about what the owners "specifically knew". What is the evidence about what the roomba owners (or, uh, holders) did or did not know, "specifically" or otherwise?