At first I had an account in stack overflow of reputation 221. The I joined Mathematica and got the reputation of 101 in Mathematica. When I came back to stack overflow I found that my stack overflow account had also received +100 association bonus. I then decided to join Physics and received 101 in Physics but this time my stack overflow account was not given +100 . Why did this happen??

  • 2
    So you're complaining about free rep? :P
    – Mysticial
    Sep 22, 2012 at 7:21
  • 6
    You only get the bonus once. Sep 22, 2012 at 7:22
  • 2
    :) Then I will join every site.
    – Himanshu
    Sep 22, 2012 at 7:26

1 Answer 1


From How does "Reputation" work?:

you associate accounts of two or more Stack Exchange network sites, and at least one of those accounts already has 200 or more reputation: +100 on each site (awarded a maximum of one time per site)

You only get the bonus on Stack Overflow once, not for each site you join.

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