In T336882#8861039, @ZauberViolino wrote:

Isn't this all about granting automatic IPBE for open proxies' users from China?

The verification process relys on the user's real IP.

The original enwiki details include putting the portal on a shifting IP address instead of a domain.

I don't know. Am not a tech guy. IP is cool.

*It counts as repetition
At the same time, it will bring privacy concerns, and law enforcement agencies (such as Ministry of State Security (China) aka MSS) can more easily trace users through money transfer methods and SMS
Of course, IP addresses can also be traced
I think the PRC Government will definitely want these privacy more after OA21(2021 Wikimedia Foundation actions on the Chinese Wikipedia)