1.
veteran, senior member, old-timer
Someone who has been part of an organization or group for a long time.
2.
longtime fan, early supporter
A fan who has been following an artist, content creator, or franchise since early on. Common in online communities.
Register: Originally formal/literary, now also casual in online contexts.
Original meaning
古参 originally referred to senior members of an organization, particularly those with long service in a company or military unit.
Modern fan culture usage
In online and fan communities, 古参 specifically means someone who has been a fan since the early days:
CONTRAST WITH 新規:
- 古参: longtime fan (since early days)
- 新規: new fan (recently joined)
Note: In fan communities, there can sometimes be tension between 古参 and 新規, with some 古参 acting superior or gatekeeping. The term 古参アピール (showing off veteran status) is often used critically.