@Nyxira uhh. The people would know about it, but none of the characters do. I at least want to know about your character's past, so for me it makes sense to be there because unless someone is power playing or god modding then there's no reason for it to not be there.
I use the skeleton more as a guideline for a character rather than a roadmap. It shows you where things are and the kind of character you're playing as a reminder. I don't really like "theoretical characters" where people purposefully leave things out saying "you'll find more about them in the rp ;)" because I kind of feel it's a bit lazy writing. For me it doesn't take away from the rp because the skeleton is getting to know your character and for others to see your character in an attempt to see who and what they want to set up character relationships with if that makes sense.