If Theo had worded it this way it would not have been "making it personal:"
Narses has a few “comments” in his pocket, and regularly copy-pastes them in response to non-Roman Catholics.
These comments are directed to the commenter, personally. They speak of the motives and character of the commenter, personally.
One is an image that communicates that the commenter is a hypocrite, that they are a pot calling a kettle black. That is, by definition, a personal attack against the character of the commenter. This does not further the conversation, but facilitates a degradation of the conversation by impugning the character of the commenter.
Another that he uses regularly is an image with the words “one trick pony.” That is not an engagement of ideas, but a personal insult, impugning the character of the person commenting. It does not further the conversation, but personally ridicules the commenter.
I’m all in favor of a robust conversation. But if I’m going to be asked to restrain the personal insults, then Roman Catholics like Narses and Cronos and others much be restrained from personally insulting those with whom they disagree.