My real-life social circles don't have much interaction between rationalists and non-rationalists. But my tumblr gives some cross-pollination. My persona there is closer to my rationalish persona than I usually show in public, and it feeds through to facebook, visible only to a group of friends I selected as being unlikely to start hating me for the things I might want to write on it. Many of those friends are non-rationalists.

I don't know how many of them typically see my tumblr posts. Usually I don't get any likes or comments on facebook. But occasionally one of them will tell me they enjoy reading them. (This has even happened in the presence of people who didn't know I had a tumblr, and nothing bad has come of that.)

So basically, this level of cross-pollination has been pretty uneventful.

(My goal is that someone casually stalking me through my real name or my usual pseudonyms shouldn't discover my tumblr. That's why I'm posting this from the throwaway.)