What is Growth Hacking? The author should have defined it ...
If you think about it long enough you reach the conclusion that any growth-hacker that is not working on a no-cure-no-pay and if-I-break-it-I-am-liable base should simply not be engaged. It's the new SEO.
Ten years ago: "Software Engineer". Today: "Java / Full-stack hacker". Ten years ago: "Accountant". Today: "Financial hacker".
https://news.ycombinator.com/item?id=6335252
Of course, the link still doesn't answer the question.