Oh great of course, that is so obvious why did I never think to go to a second web site in order to search the first web site.
Oops no even that's not correct. I can't search www.joomla.org
Brad's blog post is entitled "Have questions? We have answers."
There is a big difference between having the answers locked away and letting someone ask the question and get the answer.
Come on guys how is anyone going to find anything. It's no good telling people that it's on the web site and that they should search if you don't provide the search tools.
And don't say that it's not possible to use the standard Joomla search across multiple sites. I've done it and its not hard it just needs some modified search plugins. The search button, in the top right hand corner of course, at www.reformjudaism.org.uk searches across 6 different sites.