This isn't really a "Show HN", since there's nothing to see here without signing up for the newsletter - it's more like "HN, please sign up for my newsletter without knowing anything about it". Maybe you could provide a sample issue of the newsletter on your site that people can read without signing up first?
That's why it's a Show HN. I wanted feedback and BOOM! Now you gave me great feedback ;)
Will add that soon. That will make it much better!