I think my first experience was with the Zelda Online level editor. I was looking to make my own awesome super-cool Zelda game and stumbled across it. Thought it sucked ass and deleted it and forgot about it. Looking back and remembering, it was definitely the earlier versions of the Graal Editor.
A little while later was looking through Zelda fangames(as I often did back then) and came across Graal Online. Played a little online, got my ass handed to me as a noob and kept playing. Introduced my friend to it and we used to play offline splitscreen a bunch. This is when I first started developing. Back then the server(Classic) used to be packed with the offline game, so you could open it up offline and edit stuff. Change signs here and there, messed around, found secrets that way. Also, my first script was changing the boomerang into a flying mug(and chicken!) and placing it at the peak of Super Nick's.
However, this was probably the peak of me actually playing Graal. I used to play online
a lot. Mostly activities included Throne wars in Graal Castle, joining sucky guilds since I wasn't good enough for the "Elite" guilds, and sitting outside the Bank. Questing wasn't any more fun back then as they are now. Quests were often broken, and because of the online aspect you'd have to wait in line to fight bosses... and most of the time they were broken anyways rofl.
I also used to play a little N-Pulse, as back then it was way ahead of the main server. It was the first to introduce the kick-ass hookshot, and fishing was fun. The quests were way better than the main server, but had only a portion of the playerbase.
Eventually I got into development and stopped playing. I think my first serious job that I held on to was Bravo. I remember working with MD and Sky
I held quite a few forgettable jobs(at least that I can't remember). I think I worked on Rudora or something, I'm not sure.
After that I worked on Doomsday until it closed and then quit Graal for quite a few years until I came back.