My main question is:
What exactly means attribution for Wikipedia re-users?
Here are some options:
(i) WMF decides that new content can be accepted only if the author
agrees that attribution means mentioning the Wikipedia.
(ii) WMF decides that new content can be accepted only if the author
agrees to a main authors rule established and invented by the WMF (as
I have shown it is a myth that the 5 main authors rule is the
essential rule for the GNU FDL attribution)
(iii) Attribution means that a list of all contributor names (of a
document, i.e. Wikipedia article) is necessary.
(i) Attribution means that a list of all contributor names and IP
numbers is necessary. (Please note that an IP "represents" the author
in WMF projects.)
Please consider:
Any change of the GNU FDL has to be similar in spirit. This means that
the main principles in the preamble cannot be changed: "Secondarily,
this License preserves for the author and publisher a way to get
credit for their work, while not being considered responsible for
modifications made by others."
I cannot see that a CC-BY-SA re-use with simply Wikipedia as
attribution would fullfil this criterium.
Here are another questions:
* Will there be an opt-out (i.e. deletion) possibility for authors
which doesn't want their content dual-licensed?
* Will WMF delete all content of users and ban them permanently for
all WMF projects if they
- don't share WMF's licensing interpretations
- announce legal actions with the purpose to make a court test of the
validity of the GNU FDL update and/or WMF's license interpretations?
Klaus Graf