This is a strange thing, I think it's strange because I went to do a little research and from what I saw they are first in the coincap (https://coincap.io/exchanges), but they only have 39 pairs listed in their exchange in comparison with 377 pairs that binance has, so I find it strange that they are using this strategy to offer a prize when they have few pairs listed in their exchange. People are looking for security and a lot of pairs listed. Anyway, it will be as if people are participating in the lottery and everyone know that win the lottery is something very difficult, the chances are very small