You put it quite nicely. - followed!!
To continue, the communuty has to first decide whether this place is for everyone or some. If it is for everyone then no to flagging comments and posts. If this place is for certain people then we need to define that and start ganging up on those the community has decided are not welcomed any longer.
Interesting. Maybe a place for all but not a place for all content? Maybe all content is not valuable? Not sure here.
You might find my in-depth post inspired by this thread interesting:
https://steemit.com/steem/@kyle.anderson/subjective-proof-of-work-some-rational-comments-on-the-self-voting-trend