Liquid Feedback is a server software (implementing LD for an organization) that allows proxy representation. If I think person X can vote for me on topic Y, I can say so by using LF. And I can change my mind from one minute to another not only every 4 years. Here is a longer explanation:
Pirate pads are not chat rooms but Etherpads to work collaboratively on documents (that happen to have also a chat function).