According to Quicksprout, although a traditional marketer's
skill set is extremely valuable, it is not as necessary early in a
startups life. In the first phase of a startup you don't need
someone to "build and manage a marketing team" or "manage outside
vendors" or even "establish a strategic marketing plan to achieve
corporate objectives" or many of the other things that marketers
are tasked with doing. Early in a startup you need one
The guide provides a collection of twelve definitions of growth hacking, sourced from a variety of reputable blogs. In addition to the definitions provided in the original Quora post, I've also included a bit more detail from the related post, as well as a short bio of every source.
Feel free to make recommendations, suggest alternative definitions or ask questions--either by clicking on one of the reaction buttons at the top right hand corner of the page or by leaving your comments in the comments section to the right.