Carrie has been on the site longer than Diggs and Scooch and acts very much like an older sister to them both. Carrie can tease and gently boss Diggs and Scooch around whenever she likes; but she is not a trouble maker - just an enthusiastic kid who is a bit overzealous about proving herself.
Vote which fictional character would naturally fit in-universe with a big-named franchise! No time-travel, no interdimensional crap, no "Pooh's Adventures", they would just exist in-universe.