I was a female philosophy graduate student. A (male) friend and I met two male philosophers at an APA and had a long philosophical conversation with them. They later emailed us both and invited us to their small invitation-only conference. I told my mother and she said “a man you met at a conference invited you to his small conference? He just wants to sleep with you.” Ouch.
(Sometimes the sexism that affects women in philosophy is sexism in the wider world.)