I'm still not sure about this knowledge of mine. but to my knowledge forums do not moderate such services.
That's all I found from the marketplace Rules thread. Suppose PayPal doesn't support my country, is it illegal as well?
Those who provide these services target crypto users around the world and open threads to provide services. Now that you know what is prohibited in your country, then you yourself will refrain from taking that service. By doing this, you will not have to face major problems in the future. Because what is prohibited in your country, maybe legal in another country.
And it's important to use escrow while doing any kind of transaction so you can avoid getting scammed.