I wonder if this is one of those few genuine uses for a blockchain based system. Comments (tweets) would be posted on a very thin layer of technology, which wou

I wonder if this is one of those few genuine uses for a blockchain based system. Comments (tweets) would be posted on a very thin layer of technology, which would only support say: - comment id - comment text - datetime of comment - commenting user id - list of [upvoting/downvoting] user id - list of reply comment ids As you say, third parties could then come along and build whatever front-end they see fit. Don't want to show or allow clients to downvote? Go for it! Only aggregate upvotes from user ids over a certain age? Be my guest! The underlying information would never change. Operating costs would be funded by transaction fees, whatever that specific blockchain model may be.