[em3rgent0rdr]

> "why the heck do they need that information"

So that they can make money so that they can provide the social network services for free to everyone, so that they can actually have a large social network.

[SmellyGeekBoy]

They make money by selling ads. I'm not sure why storing users' entire location history helps with this.

[em3rgent0rdr]

so they can make more effective ads.