Sakuga Thread #2

The Sakuga Wiki [JP] - http://www18.atwiki.jp/sakuga/
ANN - http://www.animenewsnetwork.com/encyclopedia/

English Sakuga Blogs:
http://aninomiyako.wordpress.com/
http://www.pelleas.net/aniTOP/

English Sakuga Twitters:
http://twitter.com/raito_kun
http://twitter.com/Duune99
http://twitter.com/kyouray
http://twitter.com/catsuka

Previous thread: http://dis.4chan.org/read/anime/1291816034

So why do animators have to works uncreditted?