Okay, I'm griping really.

How about having the search box really, really large, and in the middle of the screen - in fact, one of those boxes that keeps mid-screen as the user scrolls through?

And, say, have a functional hurdle whereby users of less than 3 months standing can't start a new thread without having searched their topic first.

Or, a really smart search function - an automatic fill in /suggestion similar to web browser searches - that links to previous threads with those words in the title ... and refuses to accept the new post until the user accesses the previous thread ...