>>44684761A part of it is that Kris's only showing up in a 20 year old game means that to count her among your favorites, you probably played Crystal 20 years ago, and are specifically outing your implicit age over a tacky child character.
Of course, I don't think that is radically different from being too into Pokemon past grade school as a whole, and this assumes that no one picking up Pokemon after GSC could go back to like her, but it is uniquely specific.