This word came up in my journey of writing its way. With this need of articulating all the words out certainly is an opposite of what is called a writing binge, or a writing jog.
This could be an obsession, perhaps derogatorily applied, but not today, as it's a way to bring the ideas out onto the page.
Although some need of being important to others, and organizing it into eloquent phrases makes it all worth it. Anything that detracts from that term fits Graphomania. Or a hobby.