The intention appears to be to create a list of ‘American Novelists’ on Wikipedia that is made up almost entirely of men. The category lists 3,837 authors, and the first few hundred of them are mainly men.

If you look back in the ‘history’ of these women’s pages, you can see that they used to appear in the category ‘American novelists’, but that they were recently bumped down. Male novelists on Wikipedia, however – no matter how small or obscure they are – all get to be in the category ‘American novelists’.”

Wikipedia in sexism row after labelling Harper Lee and others 'women novelists' while men are 'American novelists’ by: Kevin Rawlinson (26 April 2013)