Griefing is the act of purposefully sabotaging the experience of any multi-player game. From people blocking exits and entrances in MMO's to setting traps in spawn locations in FPS's, griefers have come a long way from their humble roots and can you can expect to find them in any major game with an online multi-player component. Minecraft is no different, and in this game griefing has become almost an art form that is, at it's highest level, as complex as the act of building the many structures featured in this blog. And at it's lowest level, griefing is just a lot of random pointless destruction.
Team Avolition, a group of professional griefers, can be considered both. Here is just one of their many "adventures" in griefing.
Please know that Minecraft Dungeon does not condone or endorse anything featured in this video.