Thanks Lebis, I take that as a compliment, but I am German, via passport and also lived here since Birth =)
No, "look over" would take too much time, there are about 18k textfragments (words, sentences, sometimes sections) to "look over" ... the translators need to be of high quality.
Exact grammar, proper spelling. (errors slip in anyways)
Only Keiten is registered currently, none of the others is.
I don't know =) but I also mentioned to Keiten that players have a reason to translate, people who don't really play don't have much reason to translate there, because server rewards are not appealing.