> Can anyone point me to one ore more projects where CoCs have actually improved open source/free software projects or communities
For the record, the purpose of a project adopting a CoC isn't always to improve something, but can be to codify existing (but unwritten) community guidelines.
The LLVM project talked a lot about this when discussing adopting a CoC. They weren't necessarily doing it to change anything – but they wanted to have a written set of the community guidelines that they were already following.
There is a benefit in having such policies available in a form where people can reference it, and not have that institutional knowledge of community policies exist only in lots of people's heads.
For the record, the purpose of a project adopting a CoC isn't always to improve something, but can be to codify existing (but unwritten) community guidelines.
The LLVM project talked a lot about this when discussing adopting a CoC. They weren't necessarily doing it to change anything – but they wanted to have a written set of the community guidelines that they were already following.
There is a benefit in having such policies available in a form where people can reference it, and not have that institutional knowledge of community policies exist only in lots of people's heads.