I normally see quotes from shows or movies. Sometimes people’s bios are related to their stories. Some people have stuff relating to themselves (ex. “I’m a new author”, “I love to read and write” etc).
Mine is just a quote from a vine lolol. The road work ahead one if you wanted to know lol
I think the author’s Instagram @ is really all they need. Sometimes they don’t mention it in their stories, and if I want to keep up with updates and whatnot I kinda have to have it lol. It wouldn’t really matter right now since profiles have been temporarily removed from the app, but I often see authors include “chapter ## is out now”, which helps me if they don’t post about an update on Instagram.