> - I wonder how much self-reporting will be done here.

Yeah, I don't think we see enough reporting on bugs.python.org.  I hope people will become more vocal :)  I try to monitor what people say about asyncio on SO, Twitter and /r/python to get a better picture.

> - I also considered making the existing error message more verbose (I think that still could be effective).

Feel free to suggest a better wording.