Magento forum extension by FMEAddons let you create the forum for your customers. It provides you the interface on the back office to manage forum users, posts, and layout. Customers can register on your forum to ask product questions and you can answer them to make them your permanent customers.
User posts go into moderation first and appear after admin approval. Form extension for Magento also allows to customize forum settings like forum logo, layouts, enable/disable user signatures, place links in headers etc. You can get forum extension with lifetime free support.
More Info: Magento Extension to Create Forum
nice post