That is completely up to you and how you want to do that is also up to you. However, I try to add value to posts by writing comments and in this case, I felt my comment was of good value on your post. Why? Because your post attracts the exact crowd I wanted to reach with my comment. While other people write their own posts, saying basically what I said, where none of the target audience will read it.

That's why I commented on your post. I hope that makes sense.