If they don't start none, won't be none. Their flags and comments hurt the people that they flag and they know this.
Words don't hurt, curating content as crap doesn't hurt. People should be able to speak their minds in spite of your sensibilities that they shouldn't criticize or disagree with you.
It is arbitrary and these people don't work for steemit.inc.
It has nothing to do with that, if you read the whitepaper you would realize that. People are free to speak their minds, flagging content is curating, they can freely express their opinions of content, negative or positive.
So it is ok to be a bully if you have a lot of power?
Words on screens aren't a bully, again you are very sensitive to words on screen because you don't think it's fair that people should express their mind like they do with words on screen, people aren't attacking you, or your content, they are voting with their voting power on how many rewards, if any this content gets, but because you think they are I suggest you get off the internet as people will always use words to speak their minds and very likely they will disagree with your or even call you names because of your rationale or attack your character, but you must remember that there is a inherent and definite difference between attacking your character and attacking your person, the later involving physical harm, the former involving insulting you.