Have you ever spent thirty minutes or more trying to device the right search query to cause all the off-topic garbage and sites that are outside the desired resultset but the search engine includes them in the results anyway? I have.

This is why, IMO, security based on gathering all of everyone's data is always going to fail. There's way too much noise, so either one overreacts to everything or one ignores most events and alerts that the security system pops up.