[WikiEN-l] Why aren't *all* wikia.com links restricted under nofollow?

[Joe Szilagyi]

Unless I'm mistaken--correct me, if so... Wikia.com is a privately held
company seperate from the WMF.

Why aren't links to all *.Wikia.com links covered by nofollow? A quick
glance at the HTML source for example on the Wikia article on
en.wikipedia.org shows that transcluded links to the privately owned Wikia
pages are not covered.

Why does Wikia get the benefit of the SEO from Wikipedia? If there was an
arrangement granted by the WMF for this, was it documented publicly? If so,
where? Thanks!
-- 

Regards,
Joe