Yahoo Answers is a place where people can give their honest answers to people's honest questions. Whether the answers are correct or not, is of course not guaranteed, because they can be given by anyone.
When liberals see answers on Yahoo Answers they don't agree with it, they start shit talking / shit posting, which causes them to get violation notices and such. Because of a general lack of understanding from the average liberal, he/she/it sees this as propaganda, simply because the site does not allow people to badmouth people's honest answers.
A guy asked a (somewhat dumb) question. When a liberal talked shit to that person, the liberal got a violation. Now the liberal calls Yahoo Answers extreme right-wing propaganda, also known as, Yahoo Propaganda Answers.
I got the galloping yahoos from that Chinese food last night