People still often directly vocalize their sexism as such. Stating things like 'Its a good idea for a woman'. They probably don't often do it to the person who they are offending face but I have heard it about others and forwarded onto them in the past.

When people you trust inform you that the someone dismissed you for being a woman, then you can know pretty safely. You can keep defending your stance, although at this point I am dismissing you as a probable troll.