Gregory Maxwell:
I don't feel that the draft license at http://creativecommons.org/drafts/wiki_0.5 which has the requirement to attribute the original site gives that site any special rights. It isn't actually a new license, but a re-branded version of the cc-by-sa with the only major difference being that the wiki is attributed rather than the authors.
This is a substantial change, I'm quite aware of the license and what it is... I disagree very strongly with the nature of the altered attribution.
Your disagreement doesn't make a lot of sense to me. There is no "special right" inherent in saying "This article was originally written by members of the Wikipedia community", and it does not preclude anyone from forking. It is a historical statement that is much more practical than "This article was written by these 250 people:...", or much more wiki-like than "This article was originally started by Erik" (as CC-BY would require).
I strongly support the CC-WIKI license. It is the most practical solution to the attribution problem. If you're worried about forking being difficult, then you haven't read the GFDL very carefully, as it is probably the most forking-unfriendly license there is in the field of free content.
Erik