So it turns out that I had about 10+ aliases under my name (who were apparently using the same keycode I have) and hence had the same GUID. But shockingly after I changed my key code my GUID also changed!
Now I'm sure you know what kinds of cuter ideas people can make out of this...
Just something I noticed and thought I should probably share it with you in case some of you weren't aware.
~R34P3R