Like using a British SIM card like Giffgaff, a Singaporean bank card, and an American IP, speaking simplified Chinese, working in the Chinese timezone, which is often the obvious combination of Chinese users. Or using a Nigerian/Turkish App Store/Play Store, also very common.
These combinations are questionable and very easy to filter, probably with Luna/Haiku tier of models that are able to tell things might get fishy here, and it would likely escalate to heavier checks and trigger KYC or straight banning.
Those are only my guess and probably aren't how the system works, but I think these rules are fairly easy to come up with for developers who have any idea of anti-abuse. I've seen too many Chinese posts mourning their accounts and communicating that their setups there would be similar mechanisms, I would say.
In previous months, there was news that Claude Code uploading a special signal for the Chinese timezone is pretty evident. I probably got away from having serious insomnia, using PST on my computers, and exclusively speaking English with those models lol.
Like using a British SIM card like Giffgaff, a Singaporean bank card, and an American IP, speaking simplified Chinese, working in the Chinese timezone, which is often the obvious combination of Chinese users. Or using a Nigerian/Turkish App Store/Play Store, also very common.
These combinations are questionable and very easy to filter, probably with Luna/Haiku tier of models that are able to tell things might get fishy here, and it would likely escalate to heavier checks and trigger KYC or straight banning.
Those are only my guess and probably aren't how the system works, but I think these rules are fairly easy to come up with for developers who have any idea of anti-abuse. I've seen too many Chinese posts mourning their accounts and communicating that their setups there would be similar mechanisms, I would say.
In previous months, there was news that Claude Code uploading a special signal for the Chinese timezone is pretty evident. I probably got away from having serious insomnia, using PST on my computers, and exclusively speaking English with those models lol.