While it might require much more effort, a social media campaign targeting your customer base would be much more successful in getting targeted subscribers through your competition. The folks that you intend to target, are going to have an extremely low interest level in future emails – which you acknowledged that most will unsubscribe afterwards – and even the ones that stay subscribed probably either use unmonitored email addresses (hello mailinator.com) or won’t act on future, non competition related emails in the future.

I get the tactic, and still think it holds some merit, but nothing beats a quality, targeted list of subscribers built from those truly interested in your product, not those interested in just freebies.

Either way, I love the “experiment”, it’s very interesting and something I’ll enjoy following as you progress.