How does Quora plan to address the problem where the answer for a question may be outdated after a period of time?  
Does Quora have a plan for dealing with links in answers (or questions) that become invalid over time? 
Do you think Hillary Clinton’s Quora answers have done more harm for her campaign than good? What happened to Quora credits and promoting answers on Quora? Quora User Feedback: When will Quora add sorting answers to questions by date? Do answers sent in the Quora Digest really make more views afterwards? How will writing answers on Quora help me? How long should Quora answers be? What do you think about the answers on Quora? Do Quora writers get reimbursed for answering? Is it acceptable to answer a Quora question with a link alone? What can Quora do to help reduce the amount of trolling, grandstanding and flippant replies? Is Quora setting out to do the job that is already done by Wikipedia? How relevant are the answers on Quora? What is the Quora policy for sarcastic answers? If you report a question or answer in error on Quora, can it be reversed? What is your process for writing answers on Quora? When people write really long answers on Quora is it helpful to the person who asked? Can you regularly make a "profit" in Quora points by promoting your own answers on Quora? How long do top writers on Quora spend on their answers? Why does Quora succeed in spite of having some other Q and A websites like Yahoo Answers and Wiki Answers? What do you think of the answers on Quora? Are Quora answers copyrighted? Can I copy Quora answers on my website with the actual link mentioned? Is 'Quora best answers to a question' dying now? Are nearly all the questions in the "Psychopath" and "Sociopath" Topics on Quora a product of trolling, or are they serious? Should questions of the Spanish Quora site and any other future language link to equivalent questions on the English site? Do the authors of answers really expect people to read long winded replies like that when a simple yes or no would suffice? Is writing long, descriptive answers on Quora really worth it? Do we earn something when we write answers for Quora? Are there more answers than questions on Quora? What is Quora's answer collapse policy? What types of answers and reviews aren't allowed on Quora?