I agree that we should flag bullying and cooperatively "nuke" users who do it.
The flip side is, we should not consider a disagreement to be bullying. If someone posts a disagreement to your opinion you should consider their opinion and evidence as much as you value agreement.
I have seen too many people start bullying other users because they think that any challenge to their opinion is "trolling".
Steemit is a platform for discussion, which includes positive and negative views, it's not just a place to "pat each other on the back"