Why does Ubuntu use a non-free forum?

[plb]

As opposed to something free? Just curious.

[John.Michael.Kane]

This question has been asked and *answered* numerous times.

Have a read
http://ubuntuforums.org/showthread.php?t=23695&highlight=non+free
http://ubuntuforums.org/showthread.php?t=176622

[MilosDusan]

Ease of use? *shrug* .. last check, vBulletin was a pretty simple configuration to modify and manipulate to the likeness in design.. I don't know of any 'free' bulletin software that is as customizable as vBulletin..

[aysiu]

This is actually part of the Forum FAQ (http://ubuntuforums.org/announcement.php?f=48): Why does a forum for free software use a proprietary software?
While we would love to use an open source solution, vBulletin provides all that we need right now and also much of what we want. Other software does not. Serving this community well is our main priority and so we can/will not use something that does not provide what we require. If anything else provided what we must have and what we really would like to have, we would be using it instead; at this juncture, there is no viable alternative.