I started with Wikipedia and then the general English Wiktionary. I've come to write more at the Simple Enlgish wiktionary because I have noticed many strange holes in the content. (General English has plenty of writers and few holes.) I can be found at: http://www.facebook.com/jared.blackburn1 (Facebook).
I hope I can help add these words if I have time. I also like to fill in groups of related words.
I say I only know Simple-2 because I'm not always sure what is too simple or not simple enough; I usually make mistakes on the side of caution.
I may tried to make new pages better when people make them. I learned a lot by reading other peoples pages. I also learned a lot from seeing how other people changed my pages. I hope people will see my changes as a way to learn too.
I say I know German-0 because I have recently realized how bad my German really is (i.e., I know a tiny vocabulary and a handful of phrases, but do not have any functional communication ability).