Have you been looking at the creative coin frontend? Many of the posts you see using the tag on the other frontends have been muted for tag abuse. The curators are constantly monitoring the tag but it's an endless task.
Writing about our lives is creative nonfiction also known as personal essays. Truman Capote's In Cold Blood is in this category along with the majority of the essays of Virginia Woolf. There are elements which distinguish them from nonfiction.
I haven't no. I've just been seeing the ones that come up in my feed or in the giveaways. I can see how the monitoring would be an endless task though.