I don't see a point in spawn trapping as it is rather meaningless. The person who respawns have literally nothing to defend themselves and being stuck in obsidian getting killed by someone over and over that they know they could destroy but they can't do anything about it. It's rather frustrating, especially for the younger players. Plus the trapper could easily get the person's egg but he just likes seeing him suffer. Although getting their egg broken or falling in the void might be frustrating, it is part of the game but trolling isn't. These are more like challenges to make the game fun to play. Getting killed over and over certainly isn't.