"Green Dam Girl" is a personification of the Chinese government's filtering software.

See also:

http://www.danwei.org/net_nanny_follies/green_dam_girl.php

http://www.hecaitou.net/?p=5770

This thing is finally on Danbooru.....

Haha, awesome

...there is going to be porn of pornfilter-tan, isn't there

green dam girl is a pornfilter-tan...

I thought that was cirno for a second

Wtf is filterchan doing o_O

[deleted]