Collectivism is never about the Collective.
A month or so ago I joined a Facebook group. I learned after a short time that the admin of the group had left, and it was more or less a free for all. Cretins were posting porn (really nasty porn) scams, ads and pretty much anything regardless of the intended topic of the group. However, the group members, still numbering almost 50,000, did nothing but complain.
So, I took it upon myself to begin reporting the porn each day (FB seems to take porn almost a seriously as it does political thought it disagrees with) and within a week it had almost vanished, those posting it giving up, to annoy other groups. But still the group members complained. I pointed out that, Collectively, we as members, could report the scams and off-topic spam and if enough people agreed, the FB bots would remove them, admin or not.