[tankenmate]

A good reason for 'use it or sell it' laws; not just for land, but habitable properties as well. If no one has lived in it for 2 years the government should be able to force you to sell it.

[learnstats2]

Sure.

The goal of capitalism is that stuff is used in an economically efficient way, and capitalism is a bit broken when that doesn't happen.

'Use it or sell it' is needed but dangerous: applied naively, this creates false incentives.