I find it surprising that you only had one "stop spamming me" reply. I've cancelled two services that have sent similar mails, and I figured I wouldn't be /that/ unusual.
My assumption being that if you're sending unsolicited mails so quickly, then I should be expecting a truckload to arrive by the end of a year. In one of those cases I felt vindicated as I received a bunch of huge exit interview type replies.
My bad, that was an uncharitable way to phrase it. I didn't mean to imply that you are filling inboxes, but more that I believe it tilts the balance in that direction.
My assumption being that if you're sending unsolicited mails so quickly, then I should be expecting a truckload to arrive by the end of a year. In one of those cases I felt vindicated as I received a bunch of huge exit interview type replies.