回复：BitDNS 与比特币的通用化
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把世界上每一个基于工作量证明的法定人数系统全都堆进一个数据集，是无法扩展的。
比特币和 BitDNS 可以分开使用。用户不应该为了使用其中一个，就不得不把两者的全部内容都下载下来。BitDNS 用户可能也不想下载接下来若干个毫不相关的网络决定塞入的所有内容。
这些网络需要各有各的命运。BitDNS 用户可能会完全放任加入任何大型数据功能，因为所需的域名注册商相对很少；而比特币用户为了让大量用户和小型设备都能轻松使用，可能会在限制链的大小方面变得越来越专横。
对用比特币安全购买域名的担忧是在转移视线。用比特币换取其他不可抵赖的商品很容易。
如果你仍然担心，从密码学上说，可以实现无风险交易。双方可以在两边分别建立交易，使得当两人都签署交易时，第二位签名者的签名会触发双方资产同时释放。第二位签名者无法只释放其中一个而不释放另一个。
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Piling every proof-of-work quorum system in the world into one dataset doesn't scale.
Bitcoin and BitDNS can be used separately. Users shouldn't have to download all of both to use one or the other. BitDNS users may not want to download everything the next several unrelated networks decide to pile in either.
The networks need to have separate fates. BitDNS users might be completely liberal about adding any large data features since relatively few domain registrars are needed, while Bitcoin users might get increasingly tyrannical about limiting the size of the chain so it's easy for lots of users and small devices.
Fears about securely buying domains with Bitcoins are a red herring. It's easy to trade Bitcoins for other non-repudiable commodities.
If you're still worried about it, it's cryptographically possible to make a risk free trade. The two parties would set up transactions on both sides such that when they both sign the transactions, the second signer's signature triggers the release of both. The second signer can't release one without releasing the other.