5) To reduce costs, most people get their data indirectly through brokers (API nodes) and these API nodes have the power to censor what they relay. Already happening with Eth NFT data.
5） 为了降低成本，大多数人通过代理（API节点）间接获取数据，这些API节点有权审查它们传递的内容。Eth NFT数据已经发生。