Thanks Gaile, I have the email version of this so I will have it.
I say "messy" only to highlight that the simple idea of Birth Marriage Death is not the norm. People are human and make human choices and live human lives. My family tree is full of these type of choices, it is norm. Lives are complex and thus "messy". There is no "Clean" path. If there was, genealogy would not be so fun, interesting and rewarding. The "messyness" brings out the humanity and tells the stories of our families lives.
My mom had a child at 17, my half brother, who died in 2006 after a life of drug abuse. Not the "ideal" but all too common a story for many. She, herself, had a much older half-sibling from her father's first marriage. In fact, as I look through my tree, I rarely find, simple Birth, Marriage, Death.
Thus the questions about what is proper documentation and how it translates into Wikitree's system of documentation.