Just a reminder to be safe out there. If you want to go all in, just understand that buying here likely means you will see red for quite some time before seeing green again. Years even if history repeats.
Dollar Cost Averaging is a good technique. Gamble if you want to, just have proper expectations. Consider your budget carefully and truly evaluate how long you can mentally afford to be in the red for. This guy did not make it a day on his wager, where bag holders have had to endure 3+ years more than once in Bitcoin's history
If his wager pays off, he will make good money, but ultimately he chose gambling over his home, food, bills, and even his family. Imagine taking food out of your kids mouths to go all in on a roulette table
By the way, notice that date is May 12th. BTC was $30k. That means he made his $37627 into $26680 so far.
He said he held back $2k of his money. He is going to have a hard time making minim payments (and paynig his family's bills) until he is back in the green again. Odds are he sells the actual bottom.