Recently I was browsing around Sketchplanations collection and found this graphic around Goodheart's Law:
When a measure becomes a target, it ceases to be a good measure.
Understand GoodHarts Law is useful for QA because it helps understand that without a clear objective - specifically one that benefits the consumer- can cause a loss of focus. Thus all the work and effort may cause more harm than good.
Some questions to ask when working on a project. Don't wait for a retrospective to ask these questions. Think about these at the beginning of each sprint:
What are the goals of the project?
What solution are we trying to solve?
Will this solution actually fix the problem or will it cause more pain points to the customer.
Check out sketchplanations
Definitely check out other Sketchplanations drawings. They do a great job in explaining various topics.