I'm a JS developer too, I decided to read the code before reading the explanation. I said to myself "where the feck does 'i' come from? I guess it must be coming from outside somewhere". Smiled when I read your description:
> The variable i represents input from other people
I still think about getting a code tattoo from time to time. I'm not really a PHP developer any more though.
I like the meta meaning of yours, it's timeless. Even if the JS syntax changes or you move into Obj-C or whatever, it still has the deeper meaning you've attached to it. I think that will make it age well.
> The variable i represents input from other people
Very cool :)
But, um, no syntax highlighting?