Martijn That's true. I would describe MetaFilter as a community of 'commenters' though, if that would make any sense. Posts on MetaFilter are often just starters for discussions. And from there a whole community has grown with their own customs, jokes, etc. The description of the Horde just made me think of it. If you are interested in MeFi, I really liked this article about the community: penguinrandomhouse...