I think it would be a lot more useful if it had a few mandatory fields that would include but not limited to:
*Check boxes for what it includes (Windows, custom element, scripts etc..)
And if it was searchable
Another nice but albeit complicated feature would be if the upload process would allow stripping private info from the template swapping it with generic.
i.e any ip address to 192.168.0.1 any credentials to username password etc.. I think more users would upload.
I think as it stands, many users shy away after a few tries as I have after importing a few but turned out to be completly no help projects.