The problem is if a bigger account randomly (for example because of a different opinion concerning any topic) decides to flag all posts of a smaller account and prevent him from earning anything. Then that has nothing to do with quality of his articles or with preventing spam or plagiarism, but is nothing else than personal hostility.
When talking about Steemit we often hear the word 'censorship-free', but in reality real discussions between bigger and smaller accounts aren't often taking place because the smaller ones fear to get flagged if they defend their point of views too persistently.
What would you think if I decide to flag all your articles from now on? Would you really say to yourself "OK, @jaki01 is the bigger stake holder, he should do whatever he likes with his money which includes flagging me."?
I know that. Did you actually check my Steem power? ... I am not really a beginner here anymore ... :-) (And that's not the only account I am using ...) I am not complaining because of my own rewards.
In theory everybody can invest himself to have more influence here ... in theory ... in reality, not.
I think small accounts should be protected against an arbitrary use of flags. I guess we have to agree to disagree here ...