2009/3/11 geni geniice@gmail.com:
Importing wikipedia content would be an absolute pain
Why? The language doesn't require you to include a full list of authors. Only if you want your copy to be a "link-creditable" copy, you would need to do so.
and moveing article titles would result in some interesting legal situations.
That's true for any approach that utilizes hyperlinks; there are probably technical strategies we can use to mitigate it.
The phrase "otherwise be attributed in the manner specified by the uploader" is intensely bad because it allows people to specify attribution via skywriting.
CC-BY-SA itself places limitations on credit, but I've nevertheless qualified it with "reasonable".