(I'm not sure that are you leaving permanently or not but still):
Dear iRobot, it's unfortunate to hear your news.
I've known you for years and it has been good times with you (while you were active). Maybe everyone doesn't know you but you were a great admin after all (referring to your inactivity) and friend and person.
I wish you good luck with your life, keep yourself as a man.
Maybe we see again some day.
You will always be in my heart <3.
Farewell,
iRobot
Rain