Some ppl just want to win so much they use gem boosts and buy packs to get an edge. One hunt I was in the lead by about 5,000 points ahead of the closest player and a player who was in 10th place about 2 hours before hunt finished. In that time they used gem boost and purchased 4 lots of packs to beat me by about 200 points. They told me later they just wanted really badly to win at any cost. I spent a lot of hunts in lower placing and was happy just to get an energy crate. Just depends how much some are willing to spend to get there.