If someone's going after this, my killer feature would be user-driven moderation/filtering. That is, what I see should be determined by me, not some moderator

If someone's going after this, my killer feature would be user-driven moderation/filtering. That is, what I see should be determined by me, not some moderator or the hivemind. Almost certainly this would need an AI element to learn what I want to see. Potentially there could be a "people like you" assist to that.