Absolutely this. I've become completely unforgiving on this, especially with mobile apps. I am far too frequently left wondering if the devs—or, more likely, th

Absolutely this. I've become completely unforgiving on this, especially with mobile apps. I am far too frequently left wondering if the devs—or, more likely, their managers—missed the part of the documentation that allows them to easily store data on my device for their app to use.