"Twenty-three of his company’s domain names — many of them crucial to business operations — had been redirected to computers controlled by Microsoft... Microsoft had a plan in place to keep legitimate customers online but it didn’t work. Millions of addresses were knocked offline." - http://www.wired.com/2014/10/microsoft-pinkerton/
So should all of NO-IP's customers get to sue them for stealing their property (and potentially their traffic) improperly? No-IP at least seems to have some grounds for damages..