I think that's just a property of a naming system. Without something like a centralized threat of force that can know every person participating in the system - there really is no recourse. The approach we are taking is making it difficult to create a speculative market around names which seems to be the driving force behind squatters.
Happy to discuss it in more detail: hackernews@sepositus.com
(Note: that's an alias that goes to my email address which I avoid putting in public places for obvious reasons).