alfaNova
Well-known member
I guess WordPress is enough to collect responses. and you can add a plugin to receive questions. Then you add more content as per these questions.
wordpress.org
wordpress.org
I am worry about the forums future also. So,Wordpress is a good alternative for this.

CM Answers – Easy-to-use forum to grow your WP community
Manage Q&A forums with the WordPress questions and answers plugin. Let users ask questions, provide answers, and engage with your community.

AnsPress – Question and answer
A free question and answer plugin for WordPress. Made with developers in mind, and highly customizable.
I am worry about the forums future also. So,Wordpress is a good alternative for this.