Conte's behavior would not have violated my own idea of "conflict of interest" as I have discussed it before because he did not have real permanent authority over students, to grade them. His use of a pseudonym is also irrelevant; he has only one "identity". I have a nickname ("Bill" for "John William"); his was a language translation, still pretty obvious.
I did find this Wordpress blog posting with a simple Google search, and what it claims is rather disturbing. But the post would appear to come from sources related to Antifa. However, if a blog post like this was what doxed the teacher and led to his firing, that alone is disturbing, too.