I think this is it or, at least, to moderate slightly, there are few valid use cases for blockchain. The top comment, from Theo Jackson, captures it really well:

"Please don’t. If there is a requested feature that _requires_ blockchain I’d be interested, but “possible ways to combine LibreOffice with blockchain technologies” sounds like a solution in search of a problem."

What are the actual problems LibreOffice are trying to solve here? It just feels like this post dropped in from 4 years ago where everyone seemed to be trying to shoehorn blockchain into everything with no clear idea of what they were actually trying to achieve.

And then there's the fact that many blockchain implementations have an absolutely horrendous energy requirement. It was always odious (or at least from about 2013 onwards) but, in 2022, in the midst of an energy crisis and rising prices, it's both ethically and environmentally indefensible. I know that Ethereum has been working to address this but the reality is that for many extant cases blockchain is horrifically compute intensive and inefficient.