Since <http://en.wikipedia.org/> is arguably a
better URL for linking to
the English Wikipedia main page than
<http://en.wikipedia.org/wiki/Main_Page>, I'd see no reason not to make
the redirect a 302. We'd just be telling visitors that "our main page
is over there, but feel free to keep using this shorter URL".
Right on! (1960's language)
T>
http://en.wikipedia.org/wiki/Main_Page just looks ugly
And don't forget those of us who prefer to configure our sites with
genuine index.php URLs.
$ HEAD -dSP
http://transgender-taiwan.org/
HEAD
http://transgender-taiwan.org/ --> 301 Moved Permanently
HEAD
http://transgender-taiwan.org/index.php?title=%E9%A6%96%E9%A0%81 --> 200 OK
What this says is that all webmasters who link to the former tidy URL,
should instead change that to the latter blathersome URL. Fat chance
they would say, especially if the were the Dmoz indexers, etc. "Come
back when your site is fixed".