I think that a big part of it is WHO asks, and HOW they ask. I don't mind sharing with people who I am friends with, or at least acquaintances, as long as I can sense they have good intentions. It's when people I don't know (but maybe know of me) outright say something, and it's usually perceived in a manner that is either slightly rude, or otherwise uncomfortable. It's all in the delivery. I usually am polite when people ask, and once I hesitated for a little too long when someone asked me how much I had lost, and she then replied with "none of my business, right?" and at that point I wasnt sure what to say. But I know that most of the comments are meant for the good, and I try to take them gracefully (because frankly, as uncomfortable as they are at first, it makes you feel good about yourself that people are noticing, and that you have accomplished something).
short term goal:
IP Starting date: September 13th, '13
SW: 334, Now: Officially over 100lbs lost!