You make valid points, and, ultimately, what constitutes a "valid use" and what doesn't falls back on the registrar or the entity in charge. If it's a for-profi

You make valid points, and, ultimately, what constitutes a "valid use" and what doesn't falls back on the registrar or the entity in charge. If it's a for-profit, you're gonna have a hard time, but if it's more of a non-profit, or government organisation, you might have better luck. It's a huge "it depends" to be honest. FWIW, if someone buys a huge amount of land next to the big city, and puts up some ads, I wouldn't consider that giving it "proper use", and if someone needs to build a house, I'd consider that land abandoned and unused -- but I can understand that opinions (and even laws on the subject) will vary greatly around the world. The big question is: do you care about allowing people to have access to unused land to buy houses, or do you care about a corporation's right to own everything in sight?