That I really don't like, it doesn't make any sense. "/" as a path delimiter feels totally ok though. I mean, it's path, after all. Also, I'd expect "." to be a

That I really don't like, it doesn't make any sense. "/" as a path delimiter feels totally ok though. I mean, it's path, after all. Also, I'd expect "." to be a part of a key much more often, than "/". And also it really doesn't matter what delimiter you use.