It collects it for the purpose of building a better advertising profile of you- so it can make more money from ads. It’s still using my data about me and making money off of it.
Not to complain about downmodding - I can afford to loose the karma - but this threads a little unusual in terms of comments summing up Google's business model (which most people on HN should be aware of) going from highly upmodded to highly downmodded.
