The service doesn't seem unique or specially useful. Vote trading services are usually tiny users attempt to grow, but they do not bring the growth expected even with a larger community. Small community -> Small amount of votes -> Minimal growth. Large community -> Large amount of votes, but a larger amount of people to be voted on -> Minimal growth
Typically projects like this end up in disappointment, when focus is put on systems like this instead of enjoying the creation and trying to build actual connections with other users.