"Give me ten sentences spoken by the most innocent of men, and I will find something in them with which to hang him." -- Voltaire.

All sorts of companies (not just Google) manage to store rather more than ten sentences these days.

This is why data privacy should be considered so important. Sooner or later all sorts of people (including the government) discover this <treasure trove>, and some of them will use it to hang you.

If you think it's not possible for ordinary citizens to care about data-privacy, maybe visit Germany. The number of times even pretty regular people asked me to do or not do something in the name of "datenschutz" was pretty large!