I definitely understand the appeal, but with many people saying 'Why post on Facebook if you can earn money by doing the same thing on Steemit', people will see this as its equal, meaning a simple social media site where they can post cat memes for 'likes'.
I think we should try to educate first, tell them it doesn't really work like that here. If after that, they continue doing so, there's always flagging as a plan B :-)