You can tell who it is who is writing to you if you can measure the frequency with which they type - the rythmn, speed, etc.
Ah, so the truth doth reveals itself... I mean, does. Not only was I right when I assumed you are the Bumble Bee Man, there was also another truth hidden from us, and that truth is you are Barney as well! This is going to support my theory oh-so-well. On a sidenote: DDR rawks! If only I had the means and time to download all the songs.