Blacklisting subreddits/Filtering domains

Blacklisting subreddits while surfing /r/all (e.g. ignoring all posts coming from AdviceAnimals) is one of the best features on AlienBlue, BaconReader and RES, and would make for a great addition to Reddit Flow. Less important but also nice would be to allow domain filtering, such as ignoring posts that come from livememe.com.