I've used it to quickly start a git project, with source control, no credentials to deal with, etc

eventually I can set up a proper git repo, set up credentials, etc.

I think it's like how some people use 127.0.0.1 for stuff, then later expand the software engineering process to do it right.

I don’t understand. A proper git repo is… your git repo. Git is distributed.

I have lots of projects under for version control with no remotes.