Yohan Yukiya Seseㆍ사요한・謝雪矢@my_actual_brain There are also ISPs where they force their DNS. They just capture everything so you still end up using their DNS. I'm not sure if they're still doing this.
There was also one time, if you changed your DNS, nothing works, had to call an old ISP to complain about it (this was sometime between 2000 to 2010). You had to call them to enable your account to use other DNS. LOL.
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