Q)If a user leaves a RP for some reason, should the GM have ultimate authority in what happens to the character, or should the creator? And if the creator, what if they make unreasonable demands that don't fit the story? Please feel free to post your answers in this thread!

I believe that the GM should have the ultimate authority within the roleplay and what happens to the characters. However GMing a roleplay shouldn't be solely focused micromanaging every single detail of a roleplay and those within the roleplay should have the ability to control their character within the story, including its exit. However, if the creator crosses the line and brings forth unreasonable demands, I believe the GM should have the power to either ask the creator to change their plans or if need be to dictates what happens to the character for the sake of the roleplay.