Yes, he famously had a copy of it on him and was sat down reading it while waiting for the police to come arrest him. When asked his name, he replied, "Holden Caulfield".

I disagree with suggestions I've seen that this book can act as a catalyst for people to act out violently; to me that's the same as the lazy argument that movies and video games cause violence. It's always easier to blame entertainment and surface level stuff than to actually look at the root cause and address it.

Not even a fair or accurate criticism.

Thing is, Catcher is my favorite book and usually whenever I mention it to someone, they get all animated and say, "I HATE that book!" I ask them why and they can never, ever give details to support their opinion. They usually say, "I read it in high school, all I remember is how much I hated it". I'm in my 30's and all my friends are 30's/40's. Which means people cling to their hatred of this book, for a reason they can't even remember, for literal decades.

In the rare case I actually meet someone who is familiar with the book, they like it. But yes, your comment about just mentioning the book to people can be a good indication of what they're like as a reader.

I don't find him insufferable at all; I find him extremely sympathetic.

This is my favorite book and I read it every December.