Eight years — basically you're a doctor of the forums.
It's been 7 years since you signed up!
Today is your six year anniversary!
You've been here for five years now.
Hey, Happy Birthday!
Today is your four year anniversary on the site!
You've been here for three years, thanks for sticking around!
Today is your two year anniversary here.
This is your one year anniversary. Thanks for hanging around.
You've made your first post! Welcome!
Put a filter on it.
You associated your account with Twitter. Um, @awesome!