I'm something of a dinosaur in this world, being a sixty-something retired professor of folklore with a fully grown daughter working in audiobook editing. (But my wife and I are continuing to conserve her three barns of late 80s Hasbro MLPs in our garage.) My main interest has been contemporary folklore, the new forms of humor, play, and artistic expression that every generation creates for themselves. For the last decade I've been studying the fans of Japanese anime (and gotten a much fuller appreciation for what good animation has to say to parents as well as to children).
The MLP/FiM series, and the "brony" phenomenon it has inspired, seem a rich area to observe for new traditions of verbal and visual play. Please bear with me as I get up speed with the series that is the center of this new excitement.