You might be an oldbie if...
... you miss the time when you could climb (climb, not drop onto) the roofs of Hydlaa and its city wall.
... you remember having seen people who (bonus points for being somone who) used to climb the iron temple and the fountain.
... fall damage still confuses you.
... your character has IC flashbacks of having been a fenki in her former life
... you were confused when you didn't find the library directly next to the plaza when returning to the game a year ago.