How to credit a post of the philosophy stack-exchange?
I ask this question since in a homework essay I submitted I provided in the reference a link to a post of the user @Conifold that I found helpful. But my teacher noted to me after he read my essay that it is not acceptable but to credit only professional academics and published papers. I told my teacher that the user I credited seems to me a professional philosopher and historian and that since I read critically whatever I run into and since I learnt from what he wrote I did not want to not credit his post as one of the sources that I was influenced by while writing my homework. But my teacher insists that I will avoid list any references that are 'non-academic' from now on.