Offering code generation as a solution to code reuse is not caring about quality, it's laziness.
Saying "it's open source so you can just add feature X or change feature B" only works if you are part of some core team or are respected via other means. Github is littered with projects that have lots of Pull Requests that never get pulled.
Or d) that I have any time in my life to undertake such work.
There are many cases where project forks become more popular than the original project itself.