I cant understand your goal... Do you want to issue some courses for blockchain developers and share this or sell for some money and make your platform like Coursera, Linda and other educational sites?
We want to teach people simple things for free.
We want to do this ourselves and that other developers post their materials on our resources (for this they will receive a reward).
We also create cross-platform solutions that will allow developers to save money by working with our platform.
So if your courses will be free than how and who will pay rewards for developers for this courses? And why do you need coin (token) if this free courses?