I guess superfan for me denotes just how dedicated someone decides to be in their fandom (how meticulous their collection is, how lasered in they are on this one interest).
Ideally, a superfan wouldn’t lord it over others or try to discourage people from getting more into their interest.
Often, they aren’t rich, but just make other sacrifices to dedicate all of their disposable income to the hobby.
Kind of like how a dedicated gya for a band might obsessively collect cheki and all of the merch of their favourite band to the exclusion of all else.
Whereas other people prefer to support multiple bands.
Many western bands have super fans as well. Some people buy all vinyl variations that certain bands put out, attend multiple stops on every tour, go on themed vacations like band cruises, or in the case of Coheed, buy multiple collectors variations of the comic releases.


