How do you convince the New Zealand government to ban Shark fishing?
Create a reason for Aussies and Kiwi's to troll.
Greenpeace wanted to make New Zealanders aware that their government still allows shark fishing in their waters. Sharks are hunted by Japanese fishermen for their fins to make shark fin soup. Lets use those annoying internet trolls to drive home the message to the Kiwi government. Launched a brand of New Zealand shark fin soup, feed it to the trolls and wait for the public anger to pour in.
The idea that eventually saw daylight was somewhat scaled back, but it still helped change the world.