Triage is being tested on SO but wouldn't it be more useful to change the behavior then a behind the scene task the new users are more than likely not aware of?
I have pondered an idea for some time now on a way to get a new user to write a better question. The triage idea is okay but do new users even know their questions are being evaluated? If they don't, how will this method get the user to ask a better question because isn't that the goal?
Would it be possible to have new users see a question that is written and asked correctly when they click ask question? By written and asked correctly, I simply mean a question that shows the problem statement and what the OP has done in trying to solve it so the example questions don't need to be highest voted question just a high quality one. I would propose that the example question is not closeable for 20secs or so this way the new user just can't click past it. A simple prompt afterwords could say does your question illustrate what you have attempted? The example questions could even be related to the tags they select so the example will be related to their level.
If a new user continually post bad questions on their some number of first post, a list of said users could be sent to moderators where they can increase the time limit of viewing the examples questions and not let them leave this new user prompt until they start to take it seriously and show improvement or even short term suspensions.
How does triage help a new user? Is the new user told their question was triaged and deemed unsalvageable for the following reasons (list reasons)? If not, how can these users learn what they are doing wrong? Triage is only a benefit to those already in the community since it removes what they deem unfit. How does this help a new users learn question etiquette and norms?
If the goal is not guide or teach new users the right ways to engage in a certain stack exchange site, why allow any more people to sign up?