Constructive criticism since you had the courage to publicly inquire: was there something about the commenter that made you feel machine learning was a targeted approach? I can't immediately see anything particular about the commenter or the company (in profile), so my first impression was that you were using a buzz word.

Also I recognize that a forum is really not conducive to this, but perhaps you could quantify what you mean by "do machine learning"...what sort of business deliverable would you contribute?

Overall though, you might want to just aggressively hunt for the person's email and pitch in private :)

We actually are hiring, but i have no idea how to reach you. If you go to my blog[1], my email is at the bottom of every post.

1: https://blog.benroux.me