UPDATE: After 122 days in beta is is clear for all to see that WordPress Answers provides great content and many high-quality answers.
However, the pool of experts is far too small. This is born-out by the "Worrying" number of users and only "Okay" answer ratio.
Merging with other CMS proposals such as Drupal and Joomla will not only increase the number of experts but also provide a valuable tool for other CMS users.
ORIGINAL QUESTION:
Over the weekend I ran a little test, I submitted the same wordpress
question to both wordpress.stackexchange.com and serverfault.com.
You can see the questions, here and here.
I would of expected the Wordpress comunity to jumped on my question over at wordpress.stackexchange.com but that didn't happen.
I can only conclude that as per Joel's blog post, WordPress should just be a tag in StackOverflow and ServerFault.
There is no point in duplicating efforts/questions/answers.
That said, CMS systems do span; system admin, programming and web design. I could see the possibility of a content management StackExchange. Hopefuly this will be created with a merge of WordPress, Drupal, CMS Development, Joomla etc.
Single CMS flavours are too narrow.