One of the top comments in the article currently is by jedberg, who says in another comment that he went to Hebrew school. He discusses using Alexa as a Shabbat "hack": https://news.ycombinator.com/item?id=27012719
I will say, for the sake of combating misinformation about Judaism, that people who keep Shabbat traditionally, but also use voice activated technology on Shabbat are extremely rare, if they exist at all. I have never heard of someone who actually adheres to this practice despite living in a community that is on the extreme liberal end of Shabbat observant Jews[0].
[0] Which is where you would expect this to happen if it actually did.