I'm a fan of federation and envision a future forum form where I can host /x/Norway@myserver.no and sync and federate with others who also want to host /x/Norway.

My favouritism might very well be due to a lot of experience with federation and none with blockchain.

But in any case, I believe it is a hype for now and populated federated or blockchain based social news aggregators are at least five years out if we look at comparable projects, the fediverse, matrix, Nextcloud etc.