Some users (avoiding the "naming and shaming," but I think we all know a couple of users for whom this is the case) here don't seem to understand that the serially low-quality questions they ask need improvement, even though they've been strongly DVed and closed en masse.
I think that it might be helpful to show them the "how to ask in private beta" page another few times.
Additionally, I don't think that there is currently a time limit for how long that agreement is shown for before a user can click through. (I think I clicked through it as soon as it was shown on this site's Meta, because I had read it previously on Main) ....perhaps these users should be shown this page for a minimum of 60 seconds before they are allowed to click through.
Specifically, the feature-request is to show users who've had X number of questions closed (five sounds like a good number to start with, though I'm open to change), be shown the "how to ask" page/agreement again, for every question they ask, until they ask five questions in a row that weren't closed.
Also, the page should be shown for a minimum amount of time before clicking through, perhaps 60 seconds.
I'm open to changing X from five to three, as per comments. I had that in mind originally, but changed it to five because it sounded too harsh. However, it should be noted that (in the words of Tim): "....these people did commit and agree to this earlier. If 3 of your qs are closed, you're doing something wrong."
I don't have much experience with sites in private beta, so I don't know if this is necessary by all private betas, or just this one, whose precise scope is still under discussion.