Yeah, transferrable digital goods are 99% of the pitch for game-centric blockchain infrastructure companies, and it's an absolutely ridiculous claim because while it's TECHNICALLY possible, the incentives for developers to actually make it viable simply do not exist. Making any item interoperable between games reduces its value in any single game, or at the very least makes the value of any item unclear, which means that it's just as likely to add negative value to the game economy and make things worse for any developer that implements it.