Most of us probably would stop at making like 1 ethereum, let alone reach to 30 ethereum levels, all in all this person knows their limits and tested it and failed, now at least they learned something. I had something similar back in the day, not as big as him obviously because I am not that rich at all, but it was the same idea with the amount I had so it works out pretty similar.

I had a certain amount of money I earned from somewhere that I could have used very well, but it was from a casino so they put it on my account and instead of withdrawing like a smart person I gambled with it instead and earned more than 6 months of salary for me, and I lost it all of it. It really teaches you to be more careful about gambling and never had similar problem ever again.