It's a shame...Xenforo lacks of a decent CMS :/
I just want to know who realized CMS of Avforums, because is well organized.
It may appear that way

. Thanks, yes actually it is very well organised.
My favourite recently activated feature is tag hubs. Each item of editorial (whether it be a review, news or article) has certain tag words associated with it. Those are displayed top-left of the main image in the item. Each tag links through to its own 'hub' showing the content (reviews, news, articles) containing that tag. A hub is a page which displays editorial items laid out as pictorial blocks (although we are going to add more text oriented block types to give the page more variation). Hubs are generated automatically, with higher weighted items being given larger blocks, although the editors can manually arrange them.
E.g. The Netflix tag hub :
http://www.avforums.com/tag/netflix
Instant, pretty 'home pages' for lots of tag key words containing relevant content. Lovely for SEO.
And since each tag is associated with a Xenforo node, the node colours are used in the titlebar. The Movies colour (for both editorial content and the forums) is red, for example.
Whereas the 4k hub (ultra HD format for TVs, projectors, cameras etc.) is blue because that is the home cinema colour.
http://www.avforums.com/tag/4k
I love it because, you could say that the hubs 'organise' themselves.
The coder is John Warwick and some may know him from v3 arcade
http://www.vbulletin.org/forum/showthread.php?t=114012
Not wanting to speak on his behalf, but I would expect him to turn down any additional work as we have appointed him full time to continue to develop the CMS and there is still months of work left to do. The reviews and product front ends, for example, need completely redesigning and the product comparer, one of our favourite original features is not even on the radar, yet.
We're currently working on a whole new header navigation menu which will vastly improve on the current one.
Once that is done, we will apply the responsive design to editorial, which is desperately needed.
The CMS front end was designed by
Critical Media under close direction from myself and the editorial team with input from John. The back end took inspiration from the 3 existing separate CMS systems - home cinema hardware reviews, movie reviews (both written by me) and gaming reviews (written by John) and was steered mostly by the editorial team (who know what they want) and was designed and coded by John.
There has been an investment in making it flexible and powerful with the only weak side being the CSS and JS supplied by the designers, which we will be rewriting and optimising over time. I have been doing some of that myself while adding in Fontawesome icons.
The CMS back and front end has been designed by us with only our needs in mind, so is unlikely to suit many other websites. And with this kind of investment giving us (we hope) a competitive advantage over other, similar websites, I have no intention of releasing it. If we did decide to release it, I expect the license would be several £ thousand.
If anyone wants to create their own CMS, or one which is generic to Xenforo with a view to releasing it as an addon, I would expect it to cost £ several tens of thousands of paid, professional coding time. Done right, it's a huge job.