There have been too many memories to pick a favorite, but to name a few:
Being asked to be on staff, giving out my first warning and wanting to cry, helping count award votes, getting a Christmas present in the mail - so much fun!
The "He's Too Sexy For His Shirt" James Lafferty photo thread! Things got STEAMY.
Becoming a VIP
MSN Chats and staying up SO late while people just talked and talked about nothing and everything. I mostly observed those chats, but it was so much fun to participate in.
Getting a shout-out on Patrick's radio show! Coolest of cools!
And I always LOVED seeing what everyone could make with photoshop, or whatever other program they used. Avie's, wallpapers, i enjoyed looking at everything everyone made. I also went through a Fan-fic stage where I read every fan-fic written on the site.
Being a member of the club that couldn't make anything with photoshop. Henry the hot air-balloon.
Also, the welcome posts that Chris would make when a new member would create a thread. He would welcome them, offer them snacks, and present them with the golden key (if I remember correctly)
I will especially miss having my Grey's buddies to talk with after each episode, now.