In all of this it's a matter of scale. Products with 100 million users can amortize the costs over a much larger number of deployments. Even the smallest detai

In all of this it's a matter of scale. Products with 100 million users can amortize the costs over a much larger number of deployments. Even the smallest details become valuable at that point. Conversely, at a certain level of deployment, usability is not worth the time investment. Machine Learning researchers can frequently get away with a loose collection of Python scripts with a basic set of instructions that probably worked on their local setup.