If worried, you can always email us at hn@ycombinator.com to get a reading on what's going on (not that we always know). But really, don't worry about it. Of course you're a positive contributor. Truly negative contributors, by the way, never worry about this.

We got rid of average because (a) after looking extensively at the data we didn't see any value in it, (b) we had evidence of people gaming the metric, (c) its implementation was complicated, and most importantly (d) we think upvotes are wrong thing to optimize for. Optimize for saying substantive things.