But they
aren't violating GFDL 1.3, since they aren't using it, so
what was you complaint about?
My complaint was that the WMF was (and still is) copying and distributing my
copyrighted content in a manner other than that expressly provided under any
license I have granted them.
Sure, but the license they're using doesn't recognise complaints so
your complaint can only really be considered to be an informal request
for them to change what they're doing. If you want to take any formal
action you'll need to file a lawsuit (please don't! The fact that
you're here suggests you did, at some point, support what we're doing
here, please don't ruin it!).