I didn't make my mind. That's why I wanted you to explain it. And I quite agree that growth hacking is very different from customer development. What I am saying, and you apparently is disagreeing, is that you first do customer development and only after product/market fit you do growth hacking. I am now only doing customer development and I think is not a good thing to already start growth hacking.

I am not "buying into the hype", on the contrary, I am postponing the growth hacking for me. I think you assume too much of what I think. But it is ok if we have two different concepts about what growth hacking is - even though I can't say i KNOW what it is.