So I clicked on several of the Google links in the article to see what info they had on me, and all of the resulting pages prompted me to sign in to Google to s

So I clicked on several of the Google links in the article to see what info they had on me, and all of the resulting pages prompted me to sign in to Google to see the info. (Which I did not then do.) So... they're only gathering this info on people who use Google services while signed in? It's not like you need to be signed in to use search or maps. I thought that this article would be about how Google tracks you without being signed in, and even if you clear your browser's cookies.