I've been seeing more of these types of stories with a line like this: > About 3.57 million people left New York City this year between Jan. 1 and Dec. 7, according to Unacast, which analyzed anonymized cell phone location data. Sorry, but I don't really trust the "anonymized" very much. Why should some company I've never heard of have access to my cell phone location data in the first place.
So why do you not trust it? You're only explaining how you disagree.