There is a very important reason why in history, fraud was aggressively hunted down and destroyed. There comes a time when people will just stop trusting the system. Social media goes back to more decentralized items, perhaps just direct messaging or servers like Discord, or IRC channels. People stop using auction sites, and go back to word of mouth, or trusted supply lines with buyer guarantees. When finding a deal online becomes a gamble, we may even see a swing back to physical purchases, where a successor of Sears that may be a bit more expensive, but has a solid warranty, with some type of assurance that everything bought in the store will be useful and not junk.
If banks start becoming untrustworthy, people will take their cash and use their mattresses as ATMs. Same thing will happen with mail order, or other scamming vectors. For example, fewer and fewer people sell stuff on auction sites because someone will take the item, replace it with a lesser one, and then say they were cheated. Even if the sending of the package was filmed and signed, this rampant fraud can easily make it unprofitable for someone to work with auction sites. Maybe it might be good to use those old malls and start having flea markets again.
First point of order, banks are already and always have been untrustworthy. There's a reason they're one of the most heavily regulated industries, they have a long history of being abusive. Banks, as any experience Civ player will tell you, are a necessity, you can't build a modern economy without banks and banking, simply put we need banks but that doesn't mean we should trust them in the slightest. One of the dumbest things I hear on a regular basis is "the bank will take care of me, they're on my side".
Which leads me to my main point.
One of the biggest problems with modern society is that it's become too safe... This isn't a bad thing(TM) but it does have unintended consequences and there is nothing the law of unintended consequences loves than using a good thing(TM) to deliver an unexpected kick to the love spuds. People grew up without having to deal with grifters and charlatans on a regular basis so collectively we've lost our ability to detect and defend against obvious deceptions, the "smell" test for truth doesn't seem to be used to see if it's obvious bollocks, let alone basic fact checking.
This seems to affect those who grew up in middle class and wealthy families more. The grifters and fraudsters were purged from these places in the 80s and 90s meaning most people never had to learn to identify them and how to avoid their scams and schemes. It means people never learned how a hoax or scam works, how one starts, the tricks that get used to pull you in. I didn't grow up with a silver spoon in my mouth. I was, as Sir Elton once uttered "the juvenile product of the working class", I was born in a shithole, grew up in shitholes and vowed I'd never die in a shithole. If you want to make good on such a vow you need to learn to spot and deal with the scammers from a young age as there is often no avoiding them. They were commonplace in the poorer parts of Australia and the UK (probably most countries) in the late 90s and early 00s, likely still are and they were more than happy to relieve you of whatever meagre income or possessions you had. Even the most highly accomplished scammer likely started their career in the slums and low rent neighbourhoods. Its where they cut their teeth.
The problem we have now is that the internet has allowed the scammers that have previously been restricted to plying their trade in the poorer neighbourhoods, full access to the entirety of society and 30+ years of insulation means that the middle class burbers have no inbuilt defences. So scams, fraud and disinformation is ripping through them like smallpox thought the native American population in the 16th century. The only inoculation for this is critical thinking and there are a lot of very wealthy individuals, particularly in the US that want to retard any attempt to get people thinking critically as their business relies on people swallowing huge volumes of nonsense.
