I figured out a method to abuse the Association Bonus, however I'm unsure whether or not this is a serious issue. Are there anti systems in place that prevent this?
1 account with the Association bonus, and
1 account with 100 reputation on a different site.
Create a bounty on the first account using the association bonus on the site on which the second account has 100 reputation, and award it to the second account.
The second account now has 200 reputation and will receive the Association Bonus.
Step 2: Abuse the bounty system to give the association bonus from the second account back to the first.
Create a third account, and again abuse the bounty system to gift 200 reputation to it from the second account.
Repeat steps 2 and 3 in order to gain infinite reputation.
Give the 200 reputation back to the first account.
Please don't actually do this.