Oh, such people would never need a Dear Abby column to encourage them. That's the wonderful thing about self-righteous folks who feel they know best for everyone--they're just bursting with courage, more than enough to tell you how you should be living your life.
In a way, I do now understand the motivation. I have a relative who's probably pushing 350 pounds (he's 6'5", though, so although he's quite big, he's not as big as I would be at that weight) and I would LOVE to share some workout time and advice and food-shopping trips with him. But I can't be one of those people who tells others, "Hey, do you know you're fat?" Because the answer is always yes. Yes, we know. Yes, we know we need to "eat less, move more."
Has a single person ever been approached by a busybody and had a sudden road-to-Damascus insight from it? "OMG, you're right, I AM fat! Thank you for pointing out that this entire bag of Doritos with nutrition information clearly printed on the label is bad for me! I would never have known without your interference! Your disapproving clucks and head-shakes have saved me from a life of fatty woe!"
Hmmmph!
Eliana, I think your way is best--model success and be open to questions. People who are really ready to find out how you achieved such great results will ask--and they will listen when you give them the real story and not the stuff they see on the "give us a week..." ads.