User blog comment:Monkey d strawhat/destructive thoughts/@comment-3119203-20120201030036

Luffy does not have the destructive power to take out an island, yet. Remember that Noah was an old, rotting ship (of wood), not a mass of solid rock planted in the middle of the ocean. The only reason the fighters mentioned could take out an island is because their DFs provided them with massive destructive power. Logias are excellent at destroying sh*t, and rubber isn't. However, he probably could significantly alter the landscape, leveling a few trees here and there. If Luffy had to and could, then I could easily see him wiping out huge swaths of land to take out an opponent, and if he ever fights BB, the he probably will.