There's some relationship between education and post quality. However this education is not the type acquired from the University or high school. It is the type acquired through rigorous study, reading and writing. This is the type of education that makes critical thinking possible such that the user is able to effectively make an argument for a statement without seeming to attack the OP. The more educated you are the better the quality of posts you make.
Yes, I agree with you, we can't find any education about how to be the best poster on this forum, and I also saw a few specific lessons about blockchain in several schools in developing countries. This is about how to process thoughts and ideas which can find it on any basic knowledge on college. So, the more we get educated the more quality post, however on this case, sometimes an educated person can't even keep up with this because have disciplined knowledge that can't implementing it on any post, usually this person has enough idealist, so his post considered like spam.