So from all of the above we can make a conclusion that the guy is in profit from betting there. Idk, looks like an ad for the site to me. Everyone wants to gain 45 BTC, so the guy is very lucky and I'm glad for him. But I wouldn't recommend anyone to try to earn money that way. I mean don't try to earn money with gambling because it is very unlikely you'll succeed and most likely you'll become a gambling addict.
This will show that people need a huge bankroll to make a big profit in gambling. Seriusoly this is not possible for me and I will also not recommend this to anyone. Till today I have not placed more than 0.1 BTC in a single bet. So I think in dream also I will not imagine this in my life. Those who have more courage and enough money if you lose also you can afford then you can try this otherwise, please stay away from this type of betting.