Don't filter NSFW posts on selected subreddits

http://www.reddit.com/r/Enhancement/comments/1a5zwo/can_i_have_the_nsfw_filter_turned_off_for_some/  
http://www.reddit.com/r/Enhancement/comments/utgrk/feature_request_nsfw_filter_onoff_depending_on/

kinda http://www.reddit.com/r/Enhancement/comments/xotvq/feature_request_option_to_customize_nsfw_filter/