I have started receiving emails for issues I am watching, and there seems to be no way to unsubscribe from them. I tried looking in my user profile, under Manage Issues (I'm not subscribed to anything there), I even tried logging in to Atlassian to change settings but my account didn't exist there so I tried creating one, but I can't tell if it's linked to this bug tracker or not. At this point I'll probably just go and stop watching all my issues.