I’ve had the pleasure of suckling on 2 women in the past with flat nipples and other extroverted nipples. Both had beautiful full breasts but the flat nipple lady was very difficult suckling on because it didn’t feel like I was suckling on anything. The other lady with extroverted nipples was much easier being able to feel the nipple in back of throat and the milk flow was much easier to get.
When I first came to the site I asked similar personality questions as well to see if there was a predominant personality/love language that was interested in ANR/ABF(it seemed there was based on the way people spoke in forum). Then I might be able to use that to potentially find someone on a more traditional site with more users.
I found that without a poll (or other personality test) it is difficult to ascertain the answer to these types of questions as the few people who respond in forum/DM/chat only represent a small fraction of the users of this site.
The only truth that I could reliably take away was that more men are interested in ANR/ABF than women.