Good point. I didn't get any complaints and my unsubscribe rate wasn't any higher than usual, but that might be because I sent the referral link as part of the regular Sidebar newsletter.
On the other hand, if I had sent out those links on their own, I can see how people would perceive it as spam and complain a lot more. Then again, I might also have had a higher conversion rate, who knows… (but I'm not taking the risk of potentially alienating my subscribers to find out!)
On the other hand, if I had sent out those links on their own, I can see how people would perceive it as spam and complain a lot more. Then again, I might also have had a higher conversion rate, who knows… (but I'm not taking the risk of potentially alienating my subscribers to find out!)