In so far it's anarchic (anarchic systems don't exist, but you can have systems in an anarchical world)  that there are no rulers that can force you to do anything.
To call them leaders............. I don't know. Steemit is a, or is like a, company.... social media. (but they are not you boss either) They could any time remove the monetary aspect from the posts (I guess) and continue like a sort of facebook or twitter or so (I'm not familiar with other social media)

What happens with reward pool "rape" is maybe built in, but then again  If you are on instagram, you get nothing. 
There is not even a reward pool to be "raped".

I edited in some komma's etc. to make it better readable :)