I think we should have some kind of reporting feature on the actual webpages (every single one of them) of the tutorials - and possibly even the API-pages so that if a user finds a bug (s)he can quickly report it. Many companies run with similiar solutions for their help and support pages. It should be linked with the forum account so that an email address is required (in case you need to get back to them and retrieve further information).
Another idea - which I’ve discussed with Ingela only so far - is to have a public wiki for pretty much everything but the API references (which are auto-generated by code). That way people can fix things on their own when they discover issues with the docs.