What is the Global Translation Wiki?

Hi,

When using Rosetta, translations are sometimes shown to exist in the
"Global Translation Wiki". Sometimes I see some (horrible) translations
there that I am supposed to have done myself. In fact, they may be in
Pootle, which I tested, too.

So what is this "Wiki"? Is it a real Wiki? Can it be browsed? Not even
Google knows of the "Global translation Wiki", so where is it? :)

Regards,
Erdal