I also am surprised at the level of whales gambling here but mostly they do so because of the sideline prizes because the house edge 5% it is sure to crash every gambler during the long run,they offer daily and monthly jackpots together with tickets and other bonuses to attract the players and being near the Lambo draw this activity increases.
Yes, the 5% house edge is really a lot, and it means that many players will constantly lose in the long run. However, I guess that gambler has some effective strategy that allows him to minimize losses. Obviously, it would be reckless to wager 11 BTC without any strategy because daily jackpots, RP, and other prizes don't compensate for losses due to the house edge.
The only strategy I can think of is that they gamble here a lot because of the Lambo draw as no strategy can make you a winner against a big house edge.The RP-s can be used for the next round by exchanging them for WoF 4500 for 5 WoF spins per roll as a bonus,meanwhile the huge number of lottery tickets can significantly boost his chances to win a place there,the daily jackpot also minimizes the loses or if he wagers it that can make even more RP-s and lottery tickets but the main objective of such gambler should be a really huge number of Lambo tickets as the Lambo can make up for all the loses because 11 Bitcoin wagered mean like 1.1 Bitcoin gambled and the Lambo offers many Bitcoins especially right now which the price of Bitcoin is such low.