Alright, let's see here. Quite a popular thread this, isn't it? I really did guess I'd be taking on a bit much, but I'll just have to manage...
Starting from the earliest post...
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Gryphon: I chose Walks on Clouds for my ingame nick by the following chain of thought:
"Hmm, let's see. I need a nice nick which noone else has taken before me. I'm tired of my old 3D shooter nick, Devourer, so that'll have to go. Okay, 'Tribes' sounds rather much like an indian thingie. (americna indians, that is) Hmm... 'Dances with Wolves' is just too tacky, but perhaps something along the same lines? One does use jetpacks quite a lot in Tribes. (This I knew after playing the SP demo...) Walks on Clouds could work. Besides, it has just enough room for misinterpretation... It'll have to do."
As to your second question: nope. Probably wasn't even born then. Or maybe I was, I can't quite seem to remember...
And thirdly: mostly shooters. UT, a little bit of Q3, some CS and TF. Lots of two-letter abbreviations, obviously.
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Laurelin: I'd definitely be a cucumber, because my... erh.. no, wait... :blush I'd be an..., a..., hrm..., a tomato for the time being, my face having the color it has. I'll just quote Shrek: "Ogres are like onions, you know?"
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KitZune: 
Oh no! not the Brownie Point list!!!
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Ashaman:
1) That would have to be a cat. There is a resemblance in manners as well as in, shall we say, physique. I'm, well I wouldn't say lazy, but perhaps a bit of a slacker. I am a creature of the night. (Sounds a bit more dramatic than it really is...) I'm tall, thin and agile. I do lack the fur, the tail and the whiskers, I'm afraid, but I'll try to see what can be done about it.
2) I'm studying for a civil Engineer's (is that the correct term?)degree in Computer Sciences. 4.5 yrs (of which I'm attending my second) at Chalmers university of Technology. Have any of you heard of it, btw? Chalmers, that is...
3) Oh, if you only knew... *yum*
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Ahamkara: Well, I find it needless to do other than refer to the post succeeding yours.
(For further info check the initial post, it's really quite honest... Quite.)
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Ashaman: Yeah, so I've noticed... not!
I must admit, alhough it hurts, that I find myself quite liking this whole thing. And I who have always patronized others because of their abundant online activities... I guess I'm getting old, or something.