I just failed this close vote review question https://superuser.com/review/close/390001
I voted to close as opinion based and failed the review.
The core of the question asks "What are the technical pros and cons of using USB flash drives as backup storage? What would be the comparative reliability under safe storage conditions?"
Surely this is either "opinion based" or "too broad"?
Related discussion What is the definition of "primarily opinion-based" on SU?. Quote from answer by Random
deciding which facts to put forth as the advantage or disadvantage is based on personal preference and opinion.