Creator here. [x]it! was deliberately designed as a strict data format that stands on its own, as I think this makes it easier to create tooling and work with the data programmatically. However, I think use-cases and preferences are as different as the people who use them, so [x]it! doesn’t aim to be the one-size-fits-all approach.

For reference, there was also some discussion about this topic going on here https://github.com/jotaen/xit/discussions/10.