This is silly. If an app like Transmission expects end users to modify a config file locally as the means to add customized settings, that’s a seriously bad design. Why not provide documentation about command-line arguments or ENV variables it would look for for end user customizeability. A settings file where you need to know the meaning as you read the file is among the worst ways to solve it.
Yeah, I'll put in a PR for my local Transmission config file and see how far that gets me ;)
Config files should be understandable and readable by the end users so they can customize their local installs.