[kazinator]

I agree that a bunch of people who are all licencees of a software work should be able to exchange instructions with each other for how to modify that to work better for them; I'd like courts to see it that way.

These instructions do not increase the number of people who have copies of the work, and so no copying is taking place; copyright should not be applicable here. The licensor may argue that license clauses is being violated, but not copyright; i.e. the users are using the software in ways that they don't like (use is not copying or redistribution).