Groups of players (possibly bots) are standing waiting for bosses in public dungeons( just having doesn Pariah Catacombs and Portdun Watch dungeons in Stormhaven) to respawn and kill to loot, reptitively.
You can't see the boss at all, it dies in a second. You don't get to experieces its dialog, or what it looks like, all you see is a corpse on the ground. And most of the time you can't loot it because it dies before you do enough damage.
Some might say its not good for the game to not be able to fight bosses again to get another drop. Well if that is a necceissty, then a) make it so you have to do the whole dungeon rather than just camp the boss, and b) instance them so peope can't ruin the game for other players!