Dear Menachem,
As you wrote in the OP, you rarely interact with Frum non Lubavitchers. So let me save you a lot of heartache. When you quote Chabad sounding Torah from mainstream figures (Especially the Chasam Sofer.) be prepared for all kinds of ridiculous responses. The Frum World is not so into learning as much as they claim to be. Talking about what is or isn’t learning, is much more common. It takes an hour to learn Daf Yomi. It takes hours to debate the merits of learning Daf Yomi.