NULS is testing a new community-based token staking service to allow users to participate and earn new tokens from projects being built on the NULS blockchain. Think of it as a way to gauge interest in a project like a preliminary Kickstarter.
They had a first go and in a 24 hour trial period, Aleph pulled in more than 2 million staked NULS tokens which values at $1.25 million
https://finance.yahoo.com/news/token-staking-reward-system-wants-172434746.htmlYou have only mentioned staking coins offering to be a better choice than previous method of raising funds for start up, you have failed to state what exactly the staking of coins is all about and how a project will benefits or raising the needed start up funds from it.
Yes he did. You literally just had to click the link to see the answers to your questions. The "How it works" section and other parts of the article provide answers.