He says he thinks people tell him intimate details of their lives because they're not generally asked about them.
"I think it's something that just doesn't happen so much in our culture anymore," he says. "There are a lot of people who are putting themselves out there in different ways — everything from status updates to tweets to whatever is on their MySpace page or their own blog, but we don't have people asking questions."
Kimball says there are two ways to group people who come to the blog to have their life story written: Those who have an ego and want "how good and what they've done sort of given back to them" and those who have had interesting or difficult experiences and want to "reclaim" their lives.
Those are the people who interest him most, he says. But those can also be the most challenging.
Kimball aims to honor the difficulties of people's lives — and also present them in an even-handed way. He does not want to make them too sentimental — or too sensational. And the challenge has also changed him as a person.
"However much empathy I had before I started this, I have more now," Kimball says.
(All Things Considered.)