I'd like to know if it really matters if you completly change the bio and description of your character.
Say your a Yam'rii and your description says your jade green with orange eyes and clipper like forearms. Your parents were the senetors of the planet your were born on.
But suddenly your found to be force sensitive in the combine so you change you bio and description to say this...
Your silver/grey in colour with bright pink eyes and manipulater claws. Your force sensitive and aligned to the dark side carring a double endded lightsaber. You were born on Nar Shadda and your parents died when you were very young and you raised yourself on the street.
Would such a change matter much if you roleplay heaps? Or is this sorta frowned apon by fellow roleplayers?
For me it`s only a bad taste when people change their avatars to completely new ones, not similar to old ones too often.
As to biography it`s kind of hidden and people need to check it for themselves if they want to read it. I think many people don`t care about biographies.
Unless you already put it somewhere for all to read, changing all the story doesn`t matter imo.
In example you wrote there is a chance to make a biography more interesting, by describing the change and surroundings in which it happened. In many good movies and stories the main character changes and grows up, finds some hidden potential to overcome obstacles during the story. Describing this change can add more action to the story.
Like eyes and claws started to change due to Darkside influence, he killed or had his parents killed while filled with hatred to everything.