When speculators hold onto domain names without using them, their right to exclude imposes a cost on the other member of society who wishes to use the property

When speculators hold onto domain names without using them, their right to exclude imposes a cost on the other member of society who wishes to use the property productively. So like progressive property taxes in general, a domain tax should be high enough not only to pay for the direct cost of services, but also to discourage idle speculators and encourage owners to use the domain productively.