The problem is that the general population do not want mailing lists. It is a self-selecting group that actively wants to use these for their projects. Everyth

The problem is that the general population do not want mailing lists. It is a self-selecting group that actively wants to use these for their projects. Everything else you mention takes time and especially for projects like this the time is often great because you will hit roadblocks like "you are using the product wrong" when proposing changes/features.