1.1. 1.1 is a recursive DNS resolver. So it could really possibly able to access out sites which had been blocked in your country.
For me this is risky. If a company or a service is banned in my country I wouldn’t try do something like this especially since my money will be at risk. Binance banned US users from using their exchange, if someone in the US uses this trick to access Binance and begins trade. There is a possibility that your browser may have a glitch and Binance blocks your account. What do you do?
Risky thing indeed but there are people who do really love to play with fire or risk then this method would be good without having the hassle on downloading something
like extensions or apps or something for the sake of it but you know on what are the possible headaches later on.
If a user is going this route, then, he should know the possible consequences of their actions. Don't blame the site or accuse them of cheating if they freeze your account because of the violation of their terms. Won't go around this kind of restriction also as your funds are at stake. But if you don't care about losing money, that's fine. But don't leave unfair feedbacks to the site if they hold your funds.