That’s a good idea, Dylan. We don’t have a suggested way to collaborate among users so feel free to organise in any way. I think Official threads are a good starting place to somehow “intercept” a discussion as it develops, and propose a collaboration.
You can see an example of this in the Dialogue System thread, resulting in this joint PR: dialogue iteration 1 complete by dkaloger · Pull Request #56 · UnityTechnologies/open-project-1 · GitHub