Earlier today, a Stack Overflow (SO) member noticed that another member was knowingly editing answers on SO that contained iTunes links to include the latter member's affiliate account number so that they can profit from the referral credit for purchases. This topic was discussed here. When the topic was brought to the attention of other members, many were upset. It led to a temporary suspension of the user, while it is being determined if the user will be banned for the offense.
Needless to say, this site has already, and will continue to garnish many links to external sites. Should we have measures in place to automatically remove affiliate parameters from links for known affiliate programs (iTunes, Mac App Store, Amazon Appstore, etc.) to remove any possibility of users including their affiliate program information in the content they post. These measures would also stave off the possibility of users unnecessarily editing posts/answers with their affiliate information which they can then also earn reputation points and would remove the need for members to 'actively' police anything that is posted to ensure users don't include affiliate program information. From time to time all that would need to be done is updating the measures put in place to include changes to the various affiliate programs and/or addition of other affiliate programs.