You OS Web Based Operating System
Comments about YouOS often fall into one of the following buckets:
1) "feh, what's the point."
2) "feh, it doesn't manage hardware, it's not really an OS."
Regarding #1, I'd say that the point is to have fun working on a neat idea, and see where it leads. If it doesn't strike you as fun or interesting, move on an keep looking for something that is.
Regarding #2, you're right, it's not really an OS. However the metaphor still applies, as the vast majority of computer users think of the OS as "the screen that runs my programs."
fwiw, I built the Bitty Browser that's available from within YouOS (you can see Bitty in YouOS here -- though YouOS seems to be /dotted right now.)