There is a problem in the Stack Overflow system, and it has to do with the site's users. From what I understand, based on my experience and observations, newbies like me tend to get downvoted when a question is asked, even if the question is relevant and completely new.
I noticed that I am allowed to ask a question and possibly answer a question but not comment on someone else's question. Why not make asking a question be a higher-level privilege than commenting on someone's question, or at the same level? That way people will have to research what they are looking for before posting a question, which might prevent a user from duplicating questions.