Perhaps a web page could be catered to serve these needs. But not necessary in a bad way. There are so many scholars working with and interested in Gender Studies and Women's Studies that there ought to be various discussion list within the field. That is an admirable goal. But, it also means that it is not a list for everyone.
Some subscribers prefer a more focused list.
Right now we are working on a proposal to start a list focusing on women and international development. I'm personally working on a new list proposal on the history of childhood and youth. Please contact me if you are interested in helping with the establishment of these lists or any others. H-Net is a constantly growing community. I'm all for it.