Comment by x0x0

> What is the actual concern with McDonalds having this data about you? That they will charge you more if they know you will come back anyway?

While McDonalds is somewhat benign, most people simply don't understand that this data can be (technically at least, legally is a different question) permanently stored. See the surprise in the article that it is now easy to store every app open. Almost certainly with associated location data. So McDonalds selling/sharing that is a concern, particularly with the extraordinarily lax US approach to data privacy. Data like that cleanly bound to true identity is very unhealthy. McDonalds is highly likely syncing that into facebook as well, which is generally done both via email and phone.

And if McDonalds is doing this, imagine what more natively sensitive apps/websites are storing about you. Medical sites, period / pregnancy trackers (particularly in light of the US bans on medical treatment of pregnant or possibly pregnant women), a whole host of health-related information; political opinions, etc.