the way handshake addresses this problem is putting a cap on the total number of names that can be registered, and then users compete on fees in order to get their transaction mined to renew the name
yeah. right now it's ~$0 since there's no fee competition, but as soon as the total names registered gets close to the limit (66 million) then the cost of renewall will go up and it will be costly to squat. there are 1.85 million names registered currently.