Of note is wchaga's member ID of 101, having signed up on July 27, 2001 way back in the Java game days. By comparison, if you sign up today you will sport a number in the 90,000 range.*It's always good to have an original player return to the mothership. And to return and decide to become a Founder is just made of pure awesomesauce.
*I've been playing since 2005, and my number is 38,309. I can't imagine having a three-digit number.