It would be nice to see some follow up on the items "Need to run this test longer..." or "It's too early to tell..." items. You have a LOT of those, and for a growth hack to be valuable, you need to see some results.
Since you post the hack without the results, it's harder for people to learn from your actions here. Can you do some updates for the earlier rounds?
Since you post the hack without the results, it's harder for people to learn from your actions here. Can you do some updates for the earlier rounds?