It is because people with the scarcity mindset will follow the money. They might bemoan and even curse these accounts and say they are selfish and don't do anything for the good of the platform but they will upvote and comment professing their eternal support and love just so they can receive an upvote or a follow and maybe get some upvotes on their posts.
Because we are are looking at making a fast buck and don't realize that it is only by putting in the time, effort and building relationship that can make someone an engager.
I look at the people in both my Followers but more importantly in my Ginabot notifications and I have some whales about 2, about 10 dolphins and 15 minnows and redfishes that I find interesting.
These are the people that I would usually cpmment and upvote not because I am begging for upvotes but I truly like commmenting and reading their posts.
I may not be the norm and I could really do better if all I want are curation rewards and just front run large bid bots but I want to go out there and upvote people that I find interesting and mostly they don't get paid well but I do it to support them and make them know that I read their post.
Your comments tend to find an upvote from me because I truly appreciate them since they add to the post. They are thought out and add to or contest an idea in the article.
That is what the comment section is about.