Legal disclaimers on e-mails are not only unenforced but unenforceable – making one wonder why they are so popular .

电子邮件中的法律声明既 难以 执行，也不具执行 效力&人们不禁奇怪这种声明何以如此盛行。

Too many unenforced laws can breed contempt for law .

太多的 非 强制法会滋生对法律的轻视。