The authoritarian leaders inside of Mormonism are the ones most frequently asking this question. It is in their interest to tamp down any and all criticism or exposure of origins of and the real beliefs propagated within LDS/Mormonism. Their demands that we "leave the church alone" is like a bank robber telling the witnesses to be quiet, and not complain about or expose the heist. Of course having such an expectation is absurd in a world where one human being should be concerned with the well-being of any another human being and where all should want truth and justice to be the norm.
I was asked this question by someone recently. They were divorced. I reminded them that they still brought up hurts and wrongs committed by their former spouse. Scripture and church leaders compare church covenants to a marriage contract where each side promises to be faithful.
The Mormon Church is not truthful. This deception should not be tolerated by disaffected members anymore than it is tolerated with an unfaithful spouse.
As long as the Church continues to cause harm because of its actions, and since they claim to be "the only true church" with "authority of the true priesthood restored to man" they are opening themselves up to comparisons. For instance, I was a Methodist for the first 20 years of my life. I frequently compared Mormonism to Methodism. In fact, Mormons did that all the time when I was a new member. They couldn't leave Methodism alone. They couldn't leave Catholicism alone either. It was common to hear the Catholics slammed in meetings as being everything but good.
If the Mormon Church wants to be left alone, they would have no converts. So they send missionaries out to the world to bother and interrupt people's lives uninvited. It's a 24/7/365 activity. Why doesn't the Mormon Church and its members stop acting like the victim because people who leave tell the truth about the church?
If you're going to make grand proclamations about how to live your life, and which church is going to bring your more happiness and eventual eternal life, then you have no business asking anyone to leave you alone.
Besides, how funny is it that millions of dollars were spent pushing "I am a Mormon" adds, website, and ads everywhere one year, and then a year or three later, Mormons want us to pretend we didn't see their well-placed, and expensive ads? Not in a million years. Me and my sixth grade friends used to say, "Don't dish it out if you can't take it." Weren't we wise??
I gave a presentation at the 2008 Exmormon Conference which can now be found on Youtube titled "Lying for the Lord": youtube.com/…
People like my kids don't know what they're agreeing to when they join the church. It's wrong to have someone agree to follow certain rules for their whole life when they don't know what it really means to pay tithing, wear garments, take time to go to the temple, clean the church, etc. for their entire life. My kids deserve to know.