Based on the question: 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)
The user is only getting Association Bonus when at least one site reaches 200 Reputation.
Does the user get an association bonus if one of his/her accounts had such reputation before but had since been deleted on that site. Case in Point:
The user used to have an account on travel.SE with a significant reputation but had since been deleted and the only site in SE network where it exists the User has only 137 rep but when an account is recreated on the travel.SE site it gets the 100 rep association bonus.
Is this intentional or an uninteded consequence of having had an association bonus on another site based on previous rep elsewhere?