Isn't this just the same as people reporting your promotional emails as spam rather than clicking the unsubscribe link though? As others have pointed out, it's

Isn't this just the same as people reporting your promotional emails as spam rather than clicking the unsubscribe link though? As others have pointed out, it's likely nothing personal against you or your company but rather just learned behaviour after dealing with rogue elements - which is/has been most other businesses to date.