Forums replacements

We're looking for a new forums tech. Input welcome.

Contestants

• Discourse: http://community.nethserver.org/

Pro:

• Full Forum Software (with Topics,...)
• Real Time Search

Contra:

• StackExchange: http://askubuntu.com/

Pro:

• Question Portal

Contra:

• Not self-hosted (by ownCloud - on the servers of StackExchange)

• WotLab Burning Board®: https://community.woltlab.com/

• …

Requirements:

• ability to post news (eg releases)
• focus on answering questions so we have little duplicate questions
• great search
• responsive design

Why?

We want to replace the forum because of

• bad search-engine
• much duplicated questions