When someone purchases a wordpress plugin from you and your optin form states sign up for product updates that is exactly what your customers are signing up for. It is not a green light to send affiliate offers every other day. I am getting a little sick and tired of getting spammed by warriors that I have signed up for product updates then they are relentlessly sending me other warrior affiliate links. This has to stop since if it doesn't I will be making sure that your auto responder will be shut down. If you want to spam your customers with junk email then be honest and state hey I am only reselling this plug in(which is true for about 99% of the warriors out there) I have absolutely no control over updates but if you want to be on my email list then please sign up. But you have to stop saying sign up for product updates then start sending spam. You have been warned.