However, there's an exception that I call YAGRI, or, "You are gonna read it". It means that you shouldn't just store the minimum data required to satisfy the current product spec. You should also store data that you'll highly likely use (read), such as timestamps and contextual metadata.

Yes! It's a lot easier to store data and then ignore it later, than it is to magically conjure up data that you didn't store because you didn't think you'd need it.