Recently I've started reviewing the First Posts queue and very often there's the same thing to say to a new user which is asking to take a tour, read how to ask a question etc.
So one time I saw a really good comment (I don't remember who it did belong to):
Welcome to SFSE! Please take the tour and read How to Ask. This site works best when you can show us the code/markup/etc... that you've tried to build so far. Our goal here isn't to be a free coding service, but rather one that helps people become better programmers/admins by helping them overcome specific problems. You should edit your question to show us what you've done so far, and point to a specific part of the implementation of your requirement that you're stuck on.
I thinks it's a really good way to welcome new users who struggle with asking good questions. It's a copy of someone else's work however and I'm just wondering if there's any etiquette saying I should come up with something more creative and not to use a comment template made up by other user?