I'm still in the process of collecting information, but in the meantime, check out nimh.org for some words about Zen coding.
Voting / XP
Here is some information on the voting / experience system; in particular, it lists how you gain / lose XP. If you're interested in learning what powers come with each level, go here and search no more; you may also be interested in seeing the change in $NORM over the course of the past 30 days. However, when dealing with XP, beware and keep in mind the following, lest you will surely be doomed:
The administration does not take the voting and experience point system all that seriously.
Woe to those who do.
XP is an imaginary number granted to you by an anonymous stranger.
For grim indeed is the fate of those who forget these things.