How do you shield your gains when every traditional asset is either losing to inflation or looks like a bubble? You start reaching out for non-traditional assets.
NFTs have some marketable aspects for someone looking for an alternative investment vehicle. They're self-contained and require no real ongoing costs to just hold and flip later (compared with, say, opening a McDonald's franchise). They're also fresh and new with the promise of getting in on the ground floor of future exponential growth (as opposed to, say, buying an existing Van Gogh or a bag full of Krugerrands).
Now, in no way does this make them not bullshit (what ownership is actually conveyed? Do you now even own the copyright on the work, so you could monetize it later?) but that might be why it looks briefly compelling.
some degree of fraud and crime exists in regards to anything of value. Money laundering existed before cryptos. Most banks caught laundering money, did it at a massive scale in comparison to the value of the Bitcoin network. Fraud and crime are directly connected with value
Not to mention that centralized exchanges are an exit scam waiting to happen.
Most people could not participate in blockchain without dealing with a criminal onramp. (Bitfinex, for example.)
Plus this argument is ignoring that the way the banking system is protected from such failures is with taxpayer money, so you still end up losing some of it.
1. There are some people who struck it megarich with crypto and now have so much "f-u money" that they are willing to spend it on conspicuous consumption. It is the same sort of thing that comes from "look at how much money I lit on fire" posts being given social credit in places like WSB.
2. There are other people who already had a gazillion dollars and are also interested in conspicuous consumption.
3. NFTs are trendy and trends in the crypto space attract people seeking to make money on a trend. A bunch of people are surely buying these things hoping to leave somebody else holding the bag.
4. It is crypto, so some degree of fraud and crime is involved.