Well...people DO kinda do that about calorie-counting. I had a friend tease me about going on a "retro diet" to go along with my love of mid-century modern art and architecture. I've also been instructed to "eat the RIGHT calories" (which I agree with in theory, but then I have to hear five different theories on what "right calories" are) and have even heard (in the past) that counting calories just plain does not work, even that it's dangerous because it "encourages disordered eating with all that measuring and weighing."
When I write an article, people don't generally offer unsolicited advice on how to improve it, where to cut it, where to embellish it. I make money (albeit not much, heh!) to write and they don't, so they assume I have greater expertise in the field than they do. On weight loss, however,
everyone feels like an expert because chances are very good they've tried to lose weight themselves.
I've tried Jenny Craig, Atkins, Slimfast, the Cambridge diet, SBD, Sugarbusters, some godawful thing involving eating nothing but melons and grapefruit, another even worse thing involving only cabbage soup...the only common denominator is that every single diet I tried drew "OMG, that'll never work, I knew someone who tried that and her spleen exploded and she died!" comments from at least one person. Sometimes they were boneheaded or unhealthy plans, but other times they weren't, even though they wound up not being right for me in the long term. Either way, it wasn't really polite for others to poke their noses in and offer unsolicited advice.
I've learned not to share much with anyone but a few people close to me (and the fine folks at 3FC, of course!

) because I'd rather they saw the results, not the process. If they happen to notice that I'm in a new dress or that I no longer huff and puff halfway through the mall, awesome! If they don't, that's fine too; I'm seeking my own approval here, not theirs.
I can imagine how frustrating it must be to have taken the life-changing (and life-saving) step of WLS only to be hit with a constant barrage of why it's "not a guarantee/not magical/not the easy way out/the easy way out/dangerous/whatever" that people undoubtedly like to say, but I think that's true of a lot of life's choices.