Ive been there before, its actualy rllllyyyy easy... one day i was board so i was running around org, /poke ing every1 like 10 times each, and i was ported under GM island it was good there is a NPC named "The Chair" its fun down there
once on the PTR i was summoned there also, i dont know how people got there considering there is no GM's but it must,MUST be possible considering there was no GM's to teleport people, so some1 either know's the exploit or he made his own .mpq file.... but they summoned like 50 people down there and we where all messin around and duelin ...ect