[ddevault]

> Will there be further clarification regarding what is the precise definition?

It's intentionally subjective. A tounge-in-cheek analysis could conclude that git is a blockchain, but no one suggests this seriously. The terms establish a worldview and framework around the problems cryptocurrency and blockchain projects impose on society, and it's within this framework that projects will be evaluated -- not simply on the basis that the word "blockchain" appears in their README.

> If there will be some HW accelerator thingie or something for blockchain technologies or cryptocurrency, and the driver for that gets merged into upstream linux kernel, will that make linux kernel un-hostable on sourcehut? If not, why not?

That would likely be permitted on the basis of a subjective analysis of the situation. Linux is a project which is mostly used for use-cases other than cryptocurrency. After all, many blockchain tools already run on a Linux userspace, but that's no cause for dropping Linux.

The rules are not written in stone: they are guidelines that we enforce hand-in-hand with the cooperation of the community and within a space where all participants are encouraged to discuss the situation and argue for their views.

[_wolfie_]

While I'm still not happy about this change (well, I do not like more entries on the list now that I've actually read it), I'm happy to hear there will be a actual human in the loop you can talk to before having the repository deleted. At least that is my tl;dr understanding of the second part of your answer.