As I think we've pointed out to you before, Steemvoter is a for-profit business built on Steemit. We provide a valuable service for our customers, and in return we get compensated via self voting on our posts, which every Steemvoter user agrees to in our Terms of Service upon signing up. Our staff spend many hours each week keeping Steemvoter running, expanding our infrastructure, and providing quality tech support. If you would read our Week In Review posts you would know what we've been up to lately.
I would also like to point to this recent review of Steemvoter, which shows the positive benefit we provide for our users: https://steemit.com/steemvoter/@team-leibniz/my-time-with-steem-voter-an-honest-review