A few of the languages were from the old version of the site and we filled in the voids temporarily until we can get professional translations...but Chinese, French, Spanish, and Italian should be legit. German is okay but iffy in some parts. Dutch is iffy in many parts. And apparently Swedish and Turkish are awful. I'll get professional translations to fix what needs fixing but I'll leave the site as is for now.
I'm working on something with the Abe explorer node so please use
http://coinplorer.com/CGB for block explorer queries in the meantime.