I notice that when I go to save, the site currently tells me "By
clicking the "Save page" button, you ... agree to release your
contribution under the CC-BY-SA 3.0 License and the GFDL." I don't
mind my contributions being licensed under more-or-less any open
license, and I know WMF generally uses CC+GFDL for historical reasons,
but I suspect that there might be problems using it here.
Originally, WT used CC-BY-SA 1.0, which lacked an "or any later
version" clause, so it could not just be switched to 2.0 or whatever.
After much discussion, the WT license was changed to CC-BY-SA 3.0 and
it is still there. I am not sure what license (the independent site)
WV used, or whether they made changes over time.
As I understand it, everything we imported from WT was CC-BY-SA 3.0
licensed. That gives us the right to use it & modify it, but I don't
think to re-license it under GDFL. We know perfectly well that
Internet Brands are litiginous; does this give them something they
could be annoying about?