"Check out all the stuff that Aaron Parecki has implemented to run his website. That isn’t a home on the internet, it’s a full-fledged castle. It’s damn impressive."
"Problem is, I think users tend to think “globally.” They expect all activity within a space or context to be visible to them. If a search for some user can return nothing because the subject is outside your local social graph, then your technology is less useful than other search models. This is why we tend to pool around well-maintained global indexes to give reliable results, but then you have centralized authority emerging."