Hey Gys, from our experience Maître benefits Kickstarter campaigns when they are over. The reason is very simple: usually after a campaign is over all the hype goes away. How can you capitalise from the small community you have created and get the next 1, 2, 5K customers.
Here's where Maître comes really handy.You know that your backers like your product (they backed it!). You can do a competition using Maître whereby the people who invite most people get a reward (eg: a free product or whatever).
When Whistco has done exactly this, the results have been over the chart :)