Ant gets to bankroll its lending by packing loans it just made into bundles and sell it as security with yields of 5%-6%, whereas the actual interest on these loans are around 14%-18%. There's no brake on this system and they can lend out practically infinite amount of money and transfer all risks to banks/asset management firms and consumers.
There's no chance that Ant can proceed through IPO with this new regulation as the profit structure of the business has fundamentally changed.
That way it's easy to prosecute people 'legally' when you feel like it. It happens every day at every level of society.
Sure, if you show up from USA with no local language skills and no experience living outside of Milwaukee, and try to live exactly according to the explicit law, it's exactly like you say. But people actually from there have ways of navigating these obstacles. There's more potential for unpleasant surprises (for instance kidnappings) but if you know the lay of the land you can do alright. Maybe not advance that fast, these societies are not very upwardly mobile unless you're really REALLY acclimated and subscribed to the system, but they're still functioning societies of humans that need to get along, and if you can be cool, you can get along too.
What some Americans think they're entitled to do, which I've seen people try to do for instance in Small Claims court in US, is penetration test the legal system. They want to hack the legal code, instead of obeying fuzzy norms, common sense, suasion, and avoiding hacks that are seem too good to be true, they are magnetically attracted to these hacks. They then feel cheated when a judge oversteps his power ever so slightly to protect the integrity of the system from hacking.
Get real, China has tons of experience with usury, which is itself an Advanced Persistent Threat of the legal system and society, and if the borrowers wanted to default, the courts and social fabric would be what made the lenders whole. So of course the Chinese government is entitled to kill the IPO, it's a shitty and usurious IPO, and they'll be the ones holding the bag, so better to nip it in the bud.
This is acctually convenient for some enterpreneurs who understand the system as it makes it easy and cheap to start small and experiment, see how the things work out.
This is the reverse of Western systems where usually small guy is expected to bear the costs of all the rules and regulations while big corporations get free pass.
So the Ant IPO situation was to be expected this way or the other. Mr Ma had been trying to cash out but he had been to slow to act.
When people say "China" sometimes they don't realize that China is as diverse as the whole Europe (but under a central gov) so there are a lot of discrepancies among different areas.
Actually restrictions have been put into places over a few years. At the beginning, it was wild west, then companies need to have insurance, companies cannot hold the money, it has to put the money in an account overseen by a financial body. It is not true that the government has been watching the whole thing over the years and only take action now. If you read news, you could learn that the number of these companies have dropped from 3k to 15 and now below 10 due to regulations being put into places and bursts.
The real question that begs for explanation: The new lending law doesn't come out from nowhere. It was not drafted overnight, and was not drafted without the consultation of the target of regulation -- in that case, I'm also sure (but without hard proof as I'm just nobody) that Ant was one of the companies that the government inquired. So the real question is: Did Ant know about the regulation when it files for IPO, and if so, why didn't it disclose it?
A second question is: Ant and similar countries have been growing for years and years. Why does the government slam down the regulation in this year? This might not be a legitimate question though, as regulations usually come far behind, so it might be reasonable for the government to act slowly in this case. But still, I believe it's about time that some anti-monopoly law fells on head of companies such as Ali and Tencent. They are wayyy more powerful than they appear to be.