I have a second thought to chime in here. We have strong
evidence to believe that the limited diversity of WP editors
limits the content of Wikipedia and we know that new articles
are not being created at the rate they were 3-4 years ago. Is
it possible that the limited content has an effect on the
editors who participate? For example, suppose a potential
woman editor wants to work on an article about Charlotte Ray,
the first black woman lawyer. But there is not even a stub for
Charlotte, so our editor tries to create the article, but it
is immediately tagged for deletion for notability reasons.
Having heard from many new editors, it is incredibly common
that the initial contact with Wikipedia is that their article
is deleted. I'm proposing that existing content is limited by
the ideas of what the majority of the current community
believes is notable, and it is difficult for new editors to
earn the reputation within Wikipedia to influence this. So in
effect the current content is limiting what new editors can
contribute, and I suspect this is a major stumbling block for
new women editors