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The title is misleading, the emotional "It's crazy how much Transport for London can learn about us from our mobile data" becomes "TFL can extrapolate from an anonymised & time-limited subset of third-party data aggregations of the gender, age and travel-type of a sum of people.

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> The title is misleading, the emotional "It's crazy how much Transport for London can learn about us from our mobile data"

The title: What Transport for London can learn about us from our mobile data

I don't see what about the title is so emotionally charged. It only asks the question what London transport can learn from mobile data and the article answers precisely that.

The HN title is edited/muted compared to the article's actual title.

"Anonymization". Two reasons: either they de-anonymize the data, which is a good exercise for them but still approximate, or the demographic data is merely registered beforehand. Here, I think they for instance need the age (and not its category) because of discounts to young and old people.

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