[Guardian]

well, what about as an add on to already existing code?

like users could have a directory where they can save their own code with a template or something (with built in malicious code checks of course).

like how myspace used to work, or how some blog hosts work.

of course there would be a set file size so you can't just host files or put too many images or something but I could see it working maybe.

I don't see why not. There's already some basic existing functionality for that on a few software already (XF?). As long as the files/images were public, i.e. beneficial to the site, I don't see why a file size limit would be needed. Storage is relatively cheap now.