IrishKel (still occasionally on NDN), NDHoops, BBW92 (yes, that was her handle), LadyIrish (a favorite of many), IrishToo (delusional family member of Ronnie Rodamer), Grannie95 (Ian Williams' grandmother). Heck, at one point the legendary racist psycho MKAllen's wife ("Barb") showed up to defend her husband's honor.
None were directly chased off for being female. They probably just had things that interested them more than N.D. football to spend their online time following.