The msg part is from when you had to enter 3 letters in those arcade game hi-score lists...
At that time I was a diehard fan of Michael Schenker (Scorpions, UFO, MSG) fan... so I added
the g to my initals...
When I needed an ID for yahoo, I added the 24_7 (at that time I was sitting in front of the computer almost 24/7 :)

So far I haven't found a site where the name was taken, so I kept it :-)

Yesterday's the past, tomorrow's the future, but today is a gift. That's why it's called the present.