Many reasons…

1. For me, Facebook is a place to broadcast my current status – especially family photos. I’m not comfortable philosophizing, emoting, and being too terribly vulnerable there. If a person doesn’t see value in this type of content, they should have the option to unfollow it without unfollowing my more generic Facebook-y updates.
2. Some of my most important family & friends are not actively engaged with Facebook.
3. Content is not organized well or searchable on Facebook.
4. Instagram is for photos or very brief thoughts.
5. I don’t actively use Twitter and often want to write longer narratives.
6. Medium feels like a formal exercise in public writing rather than a blog for quick, unrefined thoughts intended for close friends and family.

So… how will people find this? Will they press the “follow” button? Are people really ok with receiving email notifications? Will the emails get lost in the “Other Inbox” folder? Is there a way to force my emails to come directly into the “Primary Inbox”? Will inbox fatigue result in few active followers?