Quite simply I’m a collector so I’ll collect the things. The issue is that since that game gives stuff for a different game, it’s unfun to do so. I have no other reason to play plunder then just getting my stuff, then not touching it ever again as long as I can help it.
If the game mode has a future, it needs to stand on its own, provide it’s own reward structure catered for the people who will want to play a BR and wishfully thinking a better engine.