http://discuss.i2p/viewtopic.php?p=291
Their point is that if an attacker wants to control lots of hops, in their network the attacker would need to get a lot of coins, too, to stake them, because otherwise they wouldn't be able to make lots of nodes. My problem with this kind of network (whether tor or lokinet) is that it has an explicit "bottleneck" in the form of a second level of participants (tor relays/lokinet service nodes) and if there are suddenly many users increasing, that bottleneck...