So, right... new member here.
Well, new... I've been knocking around Dune fandom online since the mid-nineties, though I gradually drifted out of it over the last ten years or so. Back in the day, alt.fan.dune was the main place for knowledgeable, deep and incredibly time-consuming Dune discussion, but it seems like that's pretty much dead now. With the Old Dune Imperium Scattered across the known internet universe, fragmenting its wisdom into uncountable pearls of awareness, this seems like the closest thing to a community keeping the old ways alive (though I'm not yet sure whether you're Bene Gesserit or Honored Matres in this metaphor).
To establish my credentials: I've read Dune probably a dozen times, and been through the other books two, three, four times. I know the Frank Herbert canon well. I've also seen the movie and the two miniseries, played the computer games, listened to the music, read many of Herbert's essays and interviews, some parts of the Dune Encyclopedia, etc. And since this is apparently a test of initiation among the Cast Out: No, I didn't like the Brian Herbert/Kevin J. Anderson books. When the first ones came out I was pretty mad about it, and at the writers, but then I decided to just ignore them. I got over it, and don't see any point harping on about them.
So, hi to you all. I hope to have some interesting chat and debate about things called Dune that are worth talking about.