Trusted/senior users (narrow focus)

I do agree it's desirable, but I think we have to accept this as something we educate, not something we can at present demand.

A mini tutorial/quiz on joining might be nice, of the form "Have you taken our new users' quiz? It takes 30 minutes and will help you be a great editor!", with a short description and a mini quiz (with explanations of wrong answers) at the end. But I don't think compulsory will be workable nor a major recommendation. Note it under "Interface and wizards" maybe.

Main reasons why I don't think the forcible approach suggested is so workable:

1. Ability to hide an IP should not be linked to quality of editing. Orthogonal issues (one doesn't influence the other). Big reason
2. The result won't be editors compelled to learn. It'll be most readers being annoyed, and a lot turning to mini-websites "How to pass the Wikipedia Quiz".
3. We want people to edit well in practice, not just know answers in pure theory (minor, theory certainly can't hurt, but not sure testing theoretical know-how will help).
4. Reward's better at motivating genuine learning ("if you learn these and show it in your editing you get recognition" may trump the bleaker "pass this quiz or you can't edit" as a genuine motivator)

If there's a separate idea about "requirements for new editors to edit", can you start a new thread on it, and keep this one on its headline topic :)