[bogomipz]

>"Users often publish data that they don't know what they mean. Because at first sight, it's not possible to see what's the data, or what the data is for"

No its more like people are so obsessed with curating their "fabulous" lifestyle for social media that they don't care.

The boarding passes are a carefully arranged prop in that picture, intended to reinforce the fact to social media that "yes I lead a fabulous life."

If their intention had only been to communicate to others that they were going on vacation, an "On our way to ____" message would have sufficed.