In the game, nothing could not be more exciting than you get a lot of items from the boss after taking great efforts to kill it. But if there are too many items dropped on the ground, especially a large count of useless items dropped from normal monsters, it could be annoying. It seems that you were surrounded by countless trash. When you find something valuable in these trash, it is hard to pick up them effectively.
Example: Maple Story
Maple Story has this problem. In the game, whenever you kill a monster, there will be several items drop from the monster. Normally, players will kill hundreds of monster within few minutes. So, it is nearly impossible for players to pick up all these items. Besides, the items dropped on the ground will block players' view when they battle against with monsters.
Example: Ragnarok Online
Ragnarok Online (RO) is a MMORPG I personally love the most. However it has this problem that monsters sometimes drop too many item and I hard time picking things I want -- If I pick them all my character would be over wright and hard to assot items. Also some other may come to steal your stuff.