What's the deal with your nickname? How did you get it? If your nickname is self-explanatory, then tell everyone when you first started using the internet, and what was the first thing that made you say "wow, this isn't just a place for freaks after all?" Was it a website? Was it an email from a long-lost friend? Go on, spill it.
HEH are my initials. Back in my early days on the internet (1994-1996) it was pretty easy to always get heh as my username. But then some other crazy fools started getting the idea ahead of me. So I modified my preferred pseudonym slightly by adding the 3d (this was because at the time I was somewhat obsessed with the idea of 3d graphics/VR/ray-tracing/you name it).
That's all. There really isn't anything more interesting to it.