With DW Question and Answer, you can totally build up a whole fully featured question & answer section on WordPress site like Stackoverflow, Quora or Yahoo Answers.

Your users can Submit questions, Search and Filter questions by status and Add answers to other questions. Users can comment and reply to a question or an answer, can vote and definitely can pick one best answer for their questions.

Key features:

• Submit / Filter / Edit / Delete questions
• Answer / Comment
• Vote questions / answers
• Pick the Best answer for question
• Order questions by Categories and Tags
• Manage questions by status
• Follow a question and auto-receive notification
• Sticky question
• Set Private/Public for questions and answers
• 15+ languages supported
• Customizable Notification Email
• Instant Search by keywords
• Captcha using reCAPTCHA by Google
• Support Anonymous questions, answers, and comments
• Shortcodes available