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P2p is still available in countries that completely legalize cryptocurrencies, but if the central bank in your country do not support crypto transactions, you can move to p2p.
Not sure what you mean. Cryptos do not have to be "legalized" at all, they are legal if they're not banned. And I don't think any central bank in the world supports (meaning uses) crypto transactions, nor do they generally have the mandate to regulate cryptos (they usually can issue recommendations).
You might be correct that they are not illegal in many jurisdictions, however, I disagree that they are considered
completely legal. It will also depend on which type of project and in under what jurisdiction. Let us agree that many of them are under the grey area of regulations.
In any case, is there someone who is a experienced P2P trader in the thread or knows someone? What they do is very much similar to liquidity providing. I want to know how much
APY have they earned versus the amount used being a liquidity provider.