HI, it's true that there aren't many people using this feature I haven't seen a lot activity since it was added, so yes use the search feature first and foremost and if you can't find the answer you're looking for post a thread.
another point is that being on the forum page one used to be able to see who was logged in flash chat area, it disappeared with the new layout but can't say I'm missing it.
Still possible to reach users thru PM or e-mail 4 a chat if needed though