Played iRO when it was beta. Some memories I have are:
Stook Shop outside of Izlude. This guy, 'Stook' vended his wares all day everyday. I think about him every time I wander by Izlude entrance.
Messages from GOD-POING. I remember a newbie asked how they can block the messages from her. He didn't understand she was a GM.
Some over populated leveling areas. Merchants would set up shop selling pots, wings and supplies at dungeon entrances. Like Gef' Dun.
Everyone KSed back at the start. I remember beating up peco eggs outside of Morroc, and you'd have to have a chat ready to yell at novices that were walking by: "NO HELP PLZ"
I think I have more good feelings than memories. Starting up a brand new character, leveling up solo in Culverts. The mass of people outside south of pront. It ws like a party all day every day.