Livejournal has a way of encouraging that kind of randomness. And despite the falling sales of sf books, I think sf does, too; it certainly seems to me that various fandoms are growing together in some uber-glompy manner, and that there are more people from more and more backgrounds and of more variegated type being drawn to it. And, well, you're a bit of a magnet for those interested in the thinking-person's sf, I'd say.