Asking is one of the more visible categories of Help Center, placed in upper left.
Among others, it contains the article on Why are questions no longer being accepted from my account? (blue circle below).
But the article Why is the system asking me to wait a day or more before asking another question? (red circle) is classified under My Account instead, even though it is specifically about asking questions.
I propose to move it to Asking, just above Why are questions no longer being accepted from my account? -- the idea being that users encounter question rate-limiting earlier and more often than they encounter question blocks.
And while we are looking at that page... the screenshot is from SO, no matter what the site. Please make the page moderator-editable so that it can be customized. The advice on asking good questions has a better chance of helping when it's specific to the site.