Hi. I'm one of the authors of GitFS! It is supposed to work as a fully-fledged filesystem.
Do you have in mind a particular use case?
No, I think the question is, what do you as an author of the software have in mind as a particular use case? Some examples of why someone would use this would be great.
We are using it to expose website code through SFTP to non-developers.
Another possible use case can be publishing static sites using jekyll or another tool.
We have given some answers (together with vtemian) related to some of the use cases that we see possbile and to the need that it led to its creation in the first place. But since it's open-source, we are also expecting fresh scenarios in which people would like to use it. Also, contributions are more than welcome! :)
makes sense as a simple deployment tool too i guess? simply mount the stable branch in your 'www' directory and you can push to deploy (for a static files based site at least).