We lend you our house. You don't burn it down. Political parties ration information. In politics, people are meant to make up their mind on half the facts. This is why politics remains an industrial whale, beached in an information age.
People can now find a way of being heard which can overcome voting structures.
Losing a single seat due to tactical voting organised by a website will send a message as clear as a million emails. Not long ago, people couldn't tell if you said different things to different people. People could not see if they were only getting half the picture. Now we see the joins. We can almost see the whole picture.