At one point even their clients will realize that the value of owning {name}.{everything} is more finite than the number of possible values for {everything}. When this happens, TLD racketeers will be sitting on a well oiled money burning machine, because only few of those who are attracted by that kind of business are good at keeping expenses low in times of plenty. The end game for many squatting-TLDs will be an existential pricing standoff between the dying registrar and the very low number of users that were foolish enough to build a long term identity in one of its namespaces.