Please do not take a harsh tone towards other participants, and especially don't make personal attacks against them. Go out of your way to show that you are criticizing a statement, not a person.
Please avoid statements about the presumed typical desires, capabilities or actions of some demographic group. They can offend people in that group, and they are always off-topic in GNU Project discussions.
No personal attacks were made; the posting individual was not even mentioned. Arguing against an opposing idea is permitted.
No demographic groups were mentioned. Academics are not a demographic group, save possibly in the most academic possible interpretation of the word, and are certainly not a protected demographic group.
Sarcasm only works when it has a valid point to make.
The "insipid attitude" and "authoritarian behavior" was attributed to a (non-protected) group. Now, it might be that the individual that the poster was replying to is an exemplar of that group but is the beliefs and behavior of the group as a whole that is being challenged, not the individual.
Please avoid statements about the presumed typical desires, capabilities or actions of some demographic group. They can offend people in that group, and they are always off-topic in GNU Project discussions.