I once got a friend to read HP:MoR after a year of mentioning it. After the first few pages, he googled Eliezer Yudkowsky and within a few minutes was on the Less Wrong discussion section, where he immediately found "Nazis vs Jews" (posing the question "what if Jew-killing is a terminal value for Nazis, and what if there are orders of magnitude more Nazis than Jews, what do you do, from a utilitarian perspective?"), as well as "how to stop people from being creepy at your Less Wrong meetup."

Also, not one, but two My Little Pony Friendship is Magic Rationalist Fanfics.

That was pretty much the end of that.