Sounds good in principle but if I lose my job tomorrow are you going to guarantee this stuff for me and my family?
You can get paid and live comfortably till your family is magically at the back of the que because you've been "mis-tagged" in a system.
Like it or not, right now the people awake in any way to the danger are people who write code day in and day out. That means you, who knows how an if statement, or a filter of a join can screw results.