Why not let all of humanity upvote/downvote each website and flag sites as seo-spam, content-farm if needed? We could use a web of trust, combined with gov-id

Why not let all of humanity upvote/downvote each website and flag sites as seo-spam, content-farm if needed? We could use a web of trust, combined with gov-id verification to ensure no bots/AIs manipulate the votes...