The things he attributes to being kraivah l’arayos are per Shulchan Aruch. Avoiding the familiarity of calling someone by their first name he says is a custom amongst yirei shomayim; he did not say someone who called someone by their first name is a rasha.
I believe he was a Rosh Yeshiva in Yeshiva Chofetz Chaim (Queens) and was niftar just a few days ago.