les look at some trophies that "everyone" has: 36% equipped an exotic. (lol) 25% had full legendary gear. (lol) 29% hit rank 3 in crucible. (lol) 33% got gold on a PE. 21% cleared VoG/CE 62% completed a strike. 17% upgraded a subclass. 26% upgraded a legendary weapon. most of those are pretty simple to complete. most players were gone by then. now let's look at returning players: 18% unlocked the 3rd subclass 9% completed KF raid. 5% completed WoTM so yeah... the playerbase dropped off dramatically since launch and continued for the next 3 years.