Eight years — basically you're a doctor of the forums.
You're now a trusted user and can create threads! Congratulations.
It's been 7 years since you signed up!
Today is your six year anniversary!
You've been here for five years now.
Today is your four year anniversary on the site!
You've been here for three years, thanks for sticking around!
You've received 5 likes -- guess you're doing something right.
Today is your two year anniversary here.
Hey, Happy Birthday!
This is your one year anniversary. Thanks for hanging around.
You've made your first post! Welcome!
Bold. Going a full week without an avatar?