Its an online community comparable to Facebook, Twitter, Quora. image
You can make money on Steemit by creating great content. Some are earning thousands per post.
Why should i use it? Especially since my friends are not on here?
Everyone of us has valuable things to share for the world. Sometimes even more than we think. I got my girlfriend on here https://steemit.com/@lenag and she loves it. Take a look at her posts.
Consider the fact that you are giving away free time & content to Facebook & Twitter without hardly getting anything in return. These corporations monetize your content without you ever seeing one dollar.