Commenting other people's posts and replying to comments of your own posts is the best (if not the only) way to build a healthy network. Not to mention, if you actually take in consideration what other people tell you how to improve your posts, you can go a long way.
Anyways, it's great for the whole community to get reminded about this from time to time, especially by great content creators and community leaders like you.
And comments are also the best way to meet people at Hive