Regulations on content and “breaking up” social curation processes are meant to create spaces where free speech and the free flow of ideas can actually occur.
This is what no one ever understands. Sometimes an intervention is needed by thoughtful, concerned persons in order to ensure a public space is beneficial to all users and truly free for all users. In this context, it's ensuring a kind of equity of social curation occurs rather than a biased curation. While it's fine to have these affinity spaces for things that don't hurt anyone or infringe upon anothers' freedoms, what's developing online is not really an affinity space. It's a toxic waste dump.