as open-source artifacts, scripts are easy to modify for individual needs. sometimes, an editing artist will find passion for a script made by another, to the point where their modifications result in useful extension of the original. in these cases, scripting collaborations are born.
collab category holds scripts which have exchanged hands and deepend with new perspective + energy.
curious about the etiquitte of collabs + forking? see this thread on lines for more detail + discussion.