^ Honestly it was mainly just for fun but don't underestimate them too much I've been randomly rewatching wordgirl for fun and she has some pretty good feats like throwing building sized robots to the sun from earth, flying from earth to the sun in seconds, and flying around the earth 7 times before she caught her sidekick who fell from a skyscraper.
Plus their all really smart as she has a perfect memory, perfect vocabulary, read fast and really good at math.