It's private, but they can't claim it's just "dumb pipes" given all the curation they do through algorithms. So they are open to face consequences for whatever

It's private, but they can't claim it's just "dumb pipes" given all the curation they do through algorithms. So they are open to face consequences for whatever they choose to do. They shouldn't be able to push all the liability to users, as long as they activelly boost content.