Minor note (mostly since a lot of people don't know this): Musk did not start Tesla. He led investment in their Series A, became chairman of the board, and became actively involved with the company's operations, which allowed him to gain the title of "co-founder," but he was not involved with the company before then.
Look in my posting history and you'll see plenty of whining about Google (and other tech company's) bulk collection of data. This should give you a feeling why - someone actually looking at a post history is considered intrusive and overstepping a mark.
Let alone if that wasn't freely posted in public, but instead gathered surreptitiously and correlated from many sources over much time.