What the hell is Kool Aid?

Anyway, Let me explain
A Liberal is able to believe in absolute "freedom" and reject socialist policies like Nationalisation (think Ron Paul) while a Socialist is able to believe in Socialistic policies but also able to reject Liberalism and freedoms (think Stalin). However they are both examples and alot of Liberals are often Socialist and a lot of Socialists are often Liberal.

Now, whats so bad about Communism?