The word SCAM gets thrown around way too much in the digital world. A scam would imply that the user is being intentionally misled and will suffer harm because of the actions of the scammer.
Many people say "scam" when they should mean "something I don't quite understand" or "this didn't work out as well as we thought it would".
I discovered Steemit yesterday, and I'm so excited about it. It is not a scam, and I am happy to learn more, and super stoked to be on the ground floor.