Hello!
1) I don't think there is one thing that defines us, but I think there is could be a large part of ourselves we try to hide from others, that could be defining if made public.
2) I agree that being honest and public with your story could change your life or someone else's. I wish everyone had the courage to be totally honest and own their story. But while I think it could change your life or someone else's, I think often some things are hidden to protect other people. I'm not sure if that makes it right or if that's a reason to not own your story publicly. Just another angle to look that that. I do agree with what Kaleigh though. If it's a straightforward "I'm lonely" or "I carry this guilt" I think saying that out loud would for sure benefit you and others. And Brittany, I agree that if properly executed (I don't even know what that would look like, but let's just say someone figures it out) of course I think it would benefit lots of people. I love the idea of everyone owning their stories and having the courage to share. But definitely easier said than done.
3) Yes. I think sharing on the internet is easier. Simply because we get to pick and choose what we share. Even when people decide to not share just their "highlight reel" and maybe share a struggle, it's still carefully selected and worded.