[WorldMaker]

It seems to work pretty well in practice. The entire Ubuntu "system" is essentially installed into a Windows User's home space, which means that all of the Linux users are unique to a Windows user. This is useful in that you can install things that need Linux accounts for services (like say postgresql that uses a postgres user as a service account) and interact with it with sudo -u just as you would on an ordinary Ubuntu machine. With the interesting bit that the postgres user under my Windows user login would be different from the one under a different Windows user on the same machine, but that also has some advantages.

[NoGravitas]

Thanks. That is a helpful explanation.