Not really
Just means that they don't really want to interact with eachother at all outside of events.
Usually groups of friends will often stay on because they want to interact with eachother further.
It doesn't have any correlation to how long people have played the game or if they are a bandwagon group(although kinda for that one). People who tire of the game but want to continue interacting with friends will ask others if they want to play a different game or "what do you want to do now?"