I feel like the general response to things like this in the recent past were "A fool and his money are soon parted". What happened to make this particular metho

I feel like the general response to things like this in the recent past were "A fool and his money are soon parted". What happened to make this particular method of losing money or making a bad investment get regarded as such an evil? I've seen a lot of people give actual death threats and are angry whenever NFTs are brought up. It find it kind of baffling how this sentiment came to be so quickly. What happened?