You are a victim of the bots. Before HF19, you needed several thousand steempower to deliver a few cents with an upvote.

After HF19, you were able to deliver 3 cents with just 130 Steempower. 

So the bots spam posts with comments, hoping for upvotes. Even if a few people upvote out of the thousands of comments they spam, they make money out of it, because now minnow votes deliver value. 

I really do think steemit took a wrong turn with HF19. Before that, long posts were picked up by the curation guilds and rewarded well. Now it's not worth them doing that, so the number of people voting has dropped, and quality posts are falling through the cracks. In the meanwhile the comment bots are spamming away, hoping to drain the pool a few cents at a time.