@iphonist1 One can follow a blog by reading it on the 'Read Blogs' page. One doesn't have to have it sent as emails. So there is actually no need for anyone to unsubscribe, they can just adjust their settings so that they aren't sent emails, as Timethief said above.
@auntiebellum. Some while back, WordPress changed the meaning of 'Subscribe' to 'Follow' so they are the same. As far as I know (from what I've done myself, anyway) if you check the 'never' setting on the edit page of 'Read Blogs' (which is what Timethief directed you to) you shouldn't need to click any link in the emails and can then just ignore them. With luck after choosing 'never' you won't get any more emails. I think the difference between the link in the email and the follow choices in the edit blogs I read page is there because the emails were probably not created at the same time as the settings on the edit blogs I read page.
However, if any of these settings that you choose don't work, then contact Support direct as most of us are only volunteers here and can't help you with things that are buggy!