I made the following comment in chat, and it got 4 stars, so I thought I'd raise it on meta to see if we can construct some "How to use the site effectively" content for the FAQ. (Which is only editable by the mods?)
One thing I think the site is sorely missing is some information on how to use it effectively. For example, the FAQ link doesn't do what many people might expect it to do (compared to e.g. a wiki). For example, I don't think that many users know that a good first place to look is in the tags and that clicking on the FAQ link while looking at the questions associated with a tag is a good way to find answers to common questions. This kind of information should be somewhere.