Hi Perry,
there are some big changes on the way which should help in this
regard. It's very important to have access to the source-code
demonstrated and we'll be emphasising that more strongly in the
future. The current system allows source code to be uploaded with the
video but it is a bit clunky and has not been used as much as it
might.
If the code is involved and unavailable, a nice comment requesting it
might do the trick.
cheers,
kyran