Using Adobe Acrobat to read, highlight, comment, etc. texts for school. However, there are times when I move the original PDF after having prepared it for use in an assignment. This unlinks the PDF from Acrobat, and all of my work is lost with no option to re-link the original file and salvage the work. Infuriating doesn't begin to describe the affect.
I have mentioned this to other students at Columbia, and those who have used Acrobat have all responded that it is a major reason they simply don't use Acrobat unless they have to.

I am a Lightroom user as well, and with Lightroom, lost files may be re-linked to the Lightroom catalog with relative ease.

I propose that this same concept be applied to Acrobat.