What is a pony snatcher?

Here I have come up with a new term for a group of many people I find very offensive to my smile.   I must hereby report that I am like most human being, blessed with adipose tissue that covers my muscle, tissue and bone.  Any surprise?  I must mention that it is clealy an epidemic of obesity in some circles, especially those who dine one an overabundance of food pleasures or eat foods high in fat content, sugars or other non natural synthetic perhaps food source.  That said, I must report that I maintain a very fine diet eating near completely natural food items and meat, poultry and fish.  I do not believe that I over indulge at any level.  My alcohol consumption is a mild to fair amount rarely more than 1 drink a day usually thought I might have a few more on occasion usually hard liquor or wine.  That said, I happen to weigh above the anticipated weight average for a person of my height.  Am I a fatty fat guy or just a guy with a genetic disposition for carrying an increased amount of weight.  Regardless, I refuse to fight the 'battle of the bulge'.  I did spend years in cardiovascular activities such as swimming and running for fitness.   Some weight lifting as well. It probably paid off.  I do believe I conditioned my heart to be an improved organ and probably developed some tissues that are beneficial to me today.  I do not, however, continue in these activities at this day. 
I personaly believe that fat is fat, but it is not unsightly.  Morbid obesity is alarming and likely necessitates some treatment for functional well being. 
This is a reality.  That said, I find that being an overly sized person there have been times when others have criticized my body size, whether verbally or by a glance to my midsection which shows another persons dissatisfaction with your form.  Fortunately this is very rare and I can actually cound the number of people who have offended me on my hands and maybe one foot of toes. 
OK. I decided we need a name for these people who are hell bent in embarrassing you for your body size rather than to ensure you happiness and health.  Who are they and why do we need them. Clealy my health is between myself and my physician. If  I felt the need to exercise more thats my dilemma. And certainly you have a right to comment on what you see someone eat.   But what if I do keep a good diet of nuts, hummus and carrots, diet soda, non sugar ice tea, occasional wine, vegitables, salad, frozen Amy's dinners (kosher) and whatever else my health conscious mother serves at the dinner table?  (I also eat a few eggs here and there and tuna fish often at least once a week and always on Shabbas with a cholent of which I have a few helpings).  I hereby call them "pony snatchers".  These are the people who want you to feel humiliated for you God given size.  They want you to hate yourself and see yourself as a failure.  They are intimidated by their own body interests, perhaps they dont like it that you dont have the same commitment to exercise that they ascribe to in life.   Whatever the reason, there needs to be a name for somoene as offensive or perhaps ignorant as a pony snatcher.  Why this term?  Becuase its as if they have stolen the pony from the farm when they tell you that you are not welcome to ride the horse that you might break with you girth.  Its a sickness and it must be described in detail and discussed.