Tonight I spent about two hours cleaning up the multi-site install instructions on drupal.org. Mostly I was trying to roll in some comments and generally tidy what had already been written. I noticed that the documentation for multi-site is sorely lacking though. There are a lot of really great tutorials that exist somewhere other than d.o (I'm looking at you Kevin, and you Jam!), but the information hasn't been rolled into our Official Documentation. Multi-site is just one example where Drupal.org documentation is less gooder [sic] than what the rest of the internet has to offer. There are other topics that are also lacking quality documentation. You probably know what they are.
I know that Addison has amazing monthly challenges for the doc team, but here's mine: for every minute you've spent complaining about the docs in the last month, spend two minutes fixing the pages you think are confusing, lacking information or outright wrong. Did you write a tutorial in the last month on your own site because you couldn't find the information on drupal.org? Now's the time to make the d.o docs better--find the place where that information should be and add it. (Of course you should only add information that you have written.) Anyone with a drupal.org account is already a member of the documentation team and can add and modify documentation on Drupal.org. (Cool, eh?!)
If you have an awesome tutorial but you're not sure where it fits: ask! We're in IRC (#drupal-docs on freenode) and we have a mailing list. We can help you find the best spot to put the information. And if you can't find the best spot. At least find a spot. We have a list of recently updated pages and can shuffle new pages that seem out of place. The goal here isn't to have 9832878 variations of the same information in drupal.org, so look carefully and make sure you are adding new information before creating a new page. Chances are good the information is "sort of" there but needs a little bit of care to include the bits that are missing. This might mean you need to edit a couple of different pages to place all of your information into the site.
I know that it can sometimes be a little bit intimidating to edit The Official Documentation, but that's why we track revisions for the pages: so that you can make changes without worrying about losing information! If you've ever felt you needed an invitation or permission to edit the docs, please consider this a personal request from me to you. I need your help, the team needs your help and Drupal needs your help.