The one person I remember well is JamesJaames, we had a guild called “Hot” (origin of my in game name as well) and JJ was a pretty well-known guy around the community for things like the Bushtown Prank (https://youtu.be/R08O-cP3Kuo
Another person I remember was the admin Lollipop*, her graphics were so widely used around Graal, she made so many shields, when snowtown and the area by Nexus was released a lot of her graphics were changing the style that everyone was used to. I also won her hide and seek game once.
There are countless guilds I remember being a part of including Venus Gospel, I managed to get join and was in the guild when they reached 1k tower hours and Azrael put the hat in revolution for a gralat. I still have the hat to this day but I don’t think many people know who Venus Gospel is. I also have the Snow Assassins 1k hat but that one was kind of bland looking I never did like it.
Oh and no matter how much a player complains about lag now it will NEVER compare to the early days of Revolution and Nexus.