Maybe this could be linked to this idea below (somehow) to make it sustainable? "Steemit - We need a 'donate' button (as well as a 'promote' button) where any money made from a post gets automatically donated to a charitable cause" https://steemit.com/steemit/@darrantrute/steemit-i-think-we-need-a-donate-button-as-well-as-a-promote-button-so-that-any-money-made-from-a-post-gets-automatically