Thanks for your feedback. Not all of them are UI stuff, e.g the survey, the open-source warranty and the email where I asked why users had canceled. And these was the first 10, now I'm at day 36 and all of them are not about just UI. But I see your point, and the problem is mostly to be able to pull off one hack each day, many would have to be simple and easy to do, and therefore lower quality.
Regarding what actually is a growth hack or not, if it has to be new, none of my 35 hacks are a growth hack. Sharing stuff on social media would be social media marketing, blogging would be content marketing and SEO, and more fundamental "hacks" would be either a part of a business plan or just a marketing strategy.
However, my main goal of many of the things I do is to increase growth, both direct and indirect.
Regarding what actually is a growth hack or not, if it has to be new, none of my 35 hacks are a growth hack. Sharing stuff on social media would be social media marketing, blogging would be content marketing and SEO, and more fundamental "hacks" would be either a part of a business plan or just a marketing strategy.
However, my main goal of many of the things I do is to increase growth, both direct and indirect.