It happens when the deterministic precision was given away in return for the probabilistic guesses. It was one extreme until now (deterministic code), and we are swinging to the other extreme (probabilistic slop), but what the world wants could be somewhere in between. Some information does not need too much precision, while others do need precision.

That is a nice project -- classifying it based on reliability: human-made, sources, etc. + score.

Maybe a job for an AI to do? :D