I will go out on a limb and say “normal people” do not consider this an advertisement. The ad itself is a basically an icon, just like all the pre-bundled icons for Office, that are presented as an option to use, and in this case the thing doesn’t even cost money. Despite the emphasis and importance some people (and most of HN reader fall here) place on privacy, the general desktop user base does not care. As a closing anecdote, my office just upgraded everyone to Windows 10. My boss was still using Internet Explorer as his browser of choice. He was furious that he now couldn’t use his Hotmail menu bar and auto connect to his aol.com email by default anymore. He doesn’t have a clue or care about which browser he’s using, he just wants his things the way he likes. Privacy is not even a passing concern. He’s now on Edge.