Happy Birthday Brian!
Wow... that's the very first time that colored highlighting has ever shown up on my screen with the accessibility features turned on! It's really strange seeing that! Otherwise it's just white letters on a black screen.
[glow=250,254,255][/glow]which in Internet Explorer will add colorful highlights to text. In other browsers, unfortunately, Glow does not work the way it's intended, and therefore Firefox users cannot see the greeting in both your posts unless they're highlighted using the mouse cursor. Which is probably why you were surprised to see the effect, Magnus-- it's just not used much because non-IE users don't get any benefit from it.