You need to have some trust on the forum before anyone deals with you as nobody is going to buy courses from you as a newbie without any reputation on the forum and you can avail different free courses for poker and with practice you can have the skill for it with time but maybe you found someone who will be willing to have course from you.
What he is selling, if I understand correctly, are paid poker courses, but he did not create them. He probably bought them some time ago and now he wants to sell them. For that he doesn't need a great reputation. With someone trusted to act as escrow would be enough.