If you can make a mistake, then the user makes a mistake.

1. If you can make a mistake, then the user makes a mistake.
2. The user will not read your manuals until he understands that he does not understand how to work here.
3. Until that time, he will click on all the buttons, tick at all the checkboxes and check all fields for validity.
4. He will surely enter not the data that you need, but those that he sees fit.
5. He will read the rules of conduct only after he is blocked on the site.
6. A register only when the registration is already over.
7. The user will never search for a forum thread to ask a question.
8. Even if this topic is in the most visited and important.
9. And he will ask all the questions directly to the administrator, or the most important one.
10 And absolutely not see the button - ask a question or our contacts page.

11. Even if you make the best site, there will definitely be one that says - and the next is better.

that's just already no strength)))))