Leaving comments for Votes? Honestly, if the author upvoted my comment I appreciate it as aside from getting some earnings for me It's a way of showing that somehow my comment was acknowledged rather than ignored. Though only a few, I had encountered some users who didn't bother even responding to comments, especially when I was a newbie.
I was just thinking maybe they are busy and don't have time to engage with their readers.
Thus, aside from votes, I believe this was also the best way of engaging.
I don't have an idea with coding but this was cool!