2009/2/19 Jussi-Ville Heiskanen cimonavaro@gmail.com:
Without disagreeing on the importance of attribution standards per se, it is clearly inaccurate to say that they signify how we interpret the license. Contributors can be asked to waive rights to content they add to the site (where they are the sole originators of the material, and not merely importing content that has already been published elsewhere) even above and beyond the terms of the specific license, and equally they can be asked to not pursue some rights specified in the license, where such contractual stipulations are legal. Not that it is clear how enforceable such stipulations or waivers would be, if reusers asserted a different understanding of the license and/or the IP laws of their specific jurisdiction.
But sometimes people will be important content that has already been published elsewhere. At best, we're going to have people having to go through the edit history line by line if they want to use content under GFDL, if we add in addition terms of use people will have to go through line by line if they want to do anything using them too. It's really not an option.