Answer by ASh for Should Stack Overflow be more restrictive about new user registrations?

I can think of some changes which can reduce (in theory) the incoming flow of bad questions from new user accounts.

1. Make Tour obligatory

Let new users be informed why Stack Overflow is different from other sites before they begin post questions.

I think about it every time when see yet another "I need a free control with {list-of-features}" question (in wpf or winforms section). Tour explicitly states: "Don't ask about... product or service recommendations or comparisons"

There are little details what is a good question.

Emphasize, that ...

• Code formatting is important;

• A question is not a list or requirements and Stack Overflow is not a coding service;

• MCVE is important;

• MCVE is not a wall of code;

• MCVE is not a screenshot of code in IDE

• MCVE is not a link to a GitHub repository or to an archive stored on Google.Drive;

• Phrases like "Give me codes", "It is urgent", "It has to work until tomorrow", "Upvote me" are not appropriate;

• CAPS ARE NOT APPROPRIATE;

A quiz question:

"A new Stack Overflow user with one reputation point asks a bad question. An experienced user (3K+ reputation points) downvotes the question (-2) and votes to close. Another user downvotes (-2) the question. Someone posts an answer and makes a tactical upvote (+5). New user accepts the answer (+2). What is their total reputation?"

The answer is 8. I think the real reputation value has to be 1-2-2+5+2=4 and displayed value has to be Max(real rep, 1). +8 award is unfair for a bad question with 2 downvotes.

For example, introduce new badges for closing questions (similar to Review badges).

Bronze, Silver and Gold badges for a number of question closed as a duplicate

Bronze, Silver and Gold badges for a number of question closed as off-topic (off-site resource)

Bronze, Silver and Gold badges for a number of question closed as off-topic (debugging help)

Bronze, Silver and Gold badges for a number of question closed as too broad

etc. ...