They don't lose 10%, and it seems you have no problem with curation cutting entirely into author rewards more than twice that since you can cash in on that, plus this has absolutely nothing to do with Facebook and how in the world would you restrict their spending, since when is crypto at all about limiting how much others can spend and where do you get off thinking that a mob, what you refer to as "community" has any right to impose your arbitrary limits and finally how do you figure that the SPS has anything to do with steemit selling their coins?
The nerve some people have.