An excellent point is raised:

What is perhaps the most shocking is QuizUp is backed by several venture capital firms, including some very large and well known ones. The question I have is: did they not do their due diligence when vetting this software or did they not care. I am not sure which one is more alarming to me, and it doesn’t really matter either way. Is this a sign of a bubble when a company can raise millions of dollars with so little care put into its technology or development?

This, sadly, should be of surprise to no-one.