The short answer. Al of those things force you to do shit you don't want to do and that have no reward what so ever. The thing about curated rolls is really laughable. How many of those really drop!? You're playing it wrong? Really? If the game forces you to do shit you don't like doing just to be able to get your gear and weapons up to level? If the game is forcing to waste your time? Is it that hard to understand? It's not like grinding for a good weapon ore gear. Thats for a reward. Cores are a useless waste of time to force you to play things no one enjoys. Just to inflate playertime making it seem people enjoy the game more than they actualy are. It's a game! It's supposed to be fun to play! Not a chore ore second job.