why is there an inconsistency in which avatar images get popovers attached to them i'm going to explode

april et al, several flavors of therian (plural edition)
engineer in training by day, furry artist and "web developer" also by day
adult, occasionally nsfw on main
💜@dragongirlcloaca💜
💜@8akesale💜
avatar by karvakera
why is there an inconsistency in which avatar images get popovers attached to them i'm going to explode