The person promote danielsaori, and than his first comment were upvoted 0.06 from danielsaori. What an irony. Nevertheless, vote selling service. You may continue to use your upvote button 10 times a day regardless it brings a value to the person being upvoted. This is call vesting. I have an article about it a month ago.

https://steemit.com/teammalaysia/@davidke20/new-to-steemit-what-to-do-with-my-upvotes

Even dust vote counts.