I was just browsing, for no reason at all, the Tour page, and noticed it's in the same infant state as it was in the beginning of private beta.
Having a an informative tour page is important, because that's where we divert new users to be acquainted with the mechanics of Stack Exchange network, and with the scope of our own Stack.
We've had a positive experience with filling in the "Help" -> "On-topic" page - I think we can fill in the tour as well.
Starting with the example question, since I know it can be changed by mods. There is (as described in this meta on SFF, and in this main meta post and this announcement) an automatically-generated list of questions that are eligible to become example questions - due to their length, score, etc.
Mods could post a list of those questions here, after which point we could choose one and use it for the tour.- the list is currently empty :(
The "Ask about" and "Don't ask about" fields need to be filled as well. My understanding is that it has to be a condensed list of things that are on-topic and those that aren't.
Propose both an example question and "on-topic"/"off-topic" items in the answers below.