Regardless, defect seeding is a standard (albeit not common) practice in software quality. Nowadays it's more common to talk about it in the form of mutation te

Regardless, defect seeding is a standard (albeit not common) practice in software quality. Nowadays it's more common to talk about it in the form of mutation testing, which is what this basically is. There are a number of types of bugs that are significantly more common than others, so it's possible to draw equivalence classes around them and use them as representatives of the whole. That's the basic technical skill around testing in general so isn't terribly scary as part of a SQA process.