Using it as a distributed proof of ownership seems like a great idea, yes. This is where I see possibilities for the Telegram coin as well: If POW could be me

Using it as a distributed proof of ownership seems like a great idea, yes. This is where I see possibilities for the Telegram coin as well: If POW could be meaningfully connected to delivery of messages (or even streams) in addition to in-app payments that could actually be useful. (Warning, -don't know enough to judge it.)