Back when I was... 13 or 14, i think, me and some friends went through a phase of fascination with grafitti. Back then I used to write "myst"(and don't ask me where THAT came from, since I have no idea. Definitely not from the game, though). At the same time I got my first internet connection, and I had to think of an email. Since "myst" was taken, I went with "myst.erious". It took me some three seconds to realise how dumb that was, so I just threw "myst" away, and settled for erious. I liked how it sounded, and it's fairly original, so I use it to this day. So no deep meaning behind it. If you see "erious" anywhere, that's probably me.