To use "not" or "don't" in a noun clause?

Question

As in this sentence: "[We ask that you not take anything you read here as final.](http://doc.rust-lang.org/rust.html#disclaimer)", why "not" is used instead of "don't"?

Answer 1

Do is a wasted word. It adds nothing. The sentence is stronger, both in the affirmative and in the negative without "do."