Men acknowledge me on a regular basis. So do women. Sometimes a really fast guy will pass me and not announce his intention, which is a little unnerving, but I accept it. There's tons of cyclists around here and half or more are women.
If I am on my Jamis with the pannier, I don't get as many waves, as when I am on my road bike, but since the Jamis is a little usual, I do get an occasional nod, since I look like I am commuting , even if I am just doing an errand.