I found this, is this the same system on IA??

regarding reputation:
green is positive, red is negative, gray is zero. here are the official settings:

1. new users has a level of 10 reputation upon registration
2. a user must have 10 reputation before his reputation hits count on others
3. a user must have 50 posts before his rep hits count on others
4. for every 100 points of rep, users gain 1 point of rep altering power
5. for every 1000 posts, users gain 1 point of rep altering power
6. for every 365 days, users gain 1 point of rep altering power