ETA LJ ate my explaination the first time around and I didn't notice. AAAAAAAAAAAAARRRRRRRRGGGGHH.
Kethni is a totally made up name. It's actually from a Lord of the Flies style sci-fi story I was writing about 10 years ago. She was an alien I think. When I first got online about 15 years ago (I've been online half my life, cool!) everyone was massively paranoid about people using the internet to stalk you and all that, so I had about 3 different usernames. I've been using Kethni exclusively for about 10 years I think.
I actually have a relatively rare real name - I've never met anyone with the same name, nobody I've ever met has ever heard of anyone with the same name, let alone the same spelling - so it's probably best I use Kethni. When I meet up with the Craig/Luke girls I actually answer to Kethni, which amuses my family no end. Oh, or Kethers - which seems to be the affectionate version of Kethni.