Here is the list so far:

Negative:

Nipple Nazi
Breastfeeding Nazi
fanatic
too political
guilt maker

Positive:

Lacto-Lady
Boob-Lady
Dairy Queen / Nurse
Milk maid
Titty Tutor
Lactologist as in "I have to hang up now my Lactologist is here"
Breast doctor
Breast fairy as "Without your help I couldn't have done this.  Your are a
real Breast                        Fairy"
Guardian Angel for babies

I'm glad the positives are in the lead. Keep those names coming in.
Jane