I have been relistening to a few old podcasts and there was and continues to be a lot of discussion about how the site can be made more welcoming to new users, while still getting them to understand the rules that we have to ensure quality Q&A.
Rather than trying to force people to read an FAQ or an About page etc, which lets face it is pretty difficult to make everyone read, perhaps someone could create a StackOverflow new user introduction Video.
I'm not a video production person, but I've seen plenty of pretty simple videos online using animation and clever graphics to get across lots of concepts.
In about 2 minutes you could explain writing a decent question, getting good answers & comments because of it, upvoting and editing and even earning a badge or two. Its not the sort of video I could produce, but since Stackoverflow has access to pretty much all the computing talent on the planet there must be someone in the community that could put this together!
If it was kept short enough and a helpful reminder was shown to new users, perhaps it would reduce the friction with new users a bit.
As requested some example I can find very quickly