It's usually new people the ones who laugh at Laszlo, because they just don't know the situation.
In reality, it was just free pizza, he himself has mentioned this. Around that time you could just click Generate Coins in the Bitcoin application, and your PC would use the CPU to mine some coins, 50 BTC per block found, which at that time was often. After a while you'll end up with thousands of them, and nothing to spend it on. He was offering 10 thousand BTC for pizza because there was almost nothing you could do with them, it was free pizza for him.
And Laszlo even published AFAIK the first GPU miner, and he kept mining bitcoins for free pizzas, and even bought more with lightning when lightning was a new thing.
Comments like "he should have hodled" are nonsense.